"What is it?"
Thorvald restored the coin to his hiding place.
"You tell me. I can say this much, there is no listing for anything even remotely akin to this in the Archives."
Shann's eyes widened. He absently rubbed the fingers which had held the bone coin—if it was a coin—back and forth across the torn front of his blouse. That tingle ... did he still feel it? Or was his imagination at work again? But an object not listed in the exhaustive Survey Archives would mean some totally new civilization, a new stellar race.
"It is definitely a created article," the Survey officer continued. "And it was found on the beach of one of those sea islands."
"Throg?" But Shann already knew the answer to that.
"Throg work—this?" Thorvald was openly scornful. "Throgs have no conception of such art. You must have seen their metal plates—those are the beetle-heads' idea of beauty. Have those the slightest resemblance to this?"
"Then who made it?"
"Either Warlock has—or once had—a native race advanced enough in a well-established form of civilization to develop such a sophisticated type of art, or there have been other visitors from space here before us and the Throgs. And the latter possibility I don't believe——"
"Why?"
"Because this was carved of bone or an allied substance. We haven't been quite able to identify it in the labs, but it is basically organic material. It was found exposed to the weather and yet it is in perfect condition, could have been carved any time within the past five years. It has been handled, yes, but not roughly. And we have come across evidences of no other star-cruising races or species save ourselves and the Throgs. No, I say this was made here on Warlock, not too long ago, and by intelligent beings of a very high grade of civilization."
"But they would have cities," protested Shann. "We've been here for months, explored all over this continent. We would have seen them or some traces of them."
"An old race, maybe," Thorvald mused, "a very old race, perhaps in decline, reduced to a remnant in numbers with good reason to retire into hiding. No, we've discovered no cities, no evidence of a native culture past or present. But this—" he touched the front of his blouse—"was found on the shore of an island. We may have been looking in the wrong place for our natives."
"The sea...." Shann glanced with new interest at the green water surging in wavelets along the edge of the fiord.
"Just so, the sea!"
"But scouts have been here for more than a year, one team or another. And nobody saw anything or found any traces."
"All four of our base camps were set inland, our explorations along the coast were mainly carried out by flitter, except for one party—the one which found this. And there may be excellent local reasons why any native never showed himself to us. For that matter, they may not be able to exist on land at all, any more than we could live without artificial aids in the sea."
"Now——?"
"Now we must make a real attempt to find them if they doexist anywhere near here. A friendly native race could make all the difference in the world in any struggle with the Throgs."
"Then you did have more than the dreams to back you when you argued with Fenniston!" Shann cut in.
Thorvald's eyes were on him again. "When did you hear that, Lantee?"
To his great embarrassment, Shann found himself flushing. "I heard you, the day you left for Headquarters," he admitted, and then added in his own defense, "Probably half the camp did, too."
Thorvald's gathering frown flickered away. He gave a snort of laughter. "Yes, I guess we did rather get to the bellowing point that morning. The dreams——" he came back to the subject—"Yes, the dreams were—are—important. We had their warning from the start. Lorry was the First-In Scout who charted Warlock, and he is a good man. I guess I can break secret now to tell you that his ship was equipped with a new experimental device which recorded—well, you might call it an "emanation"—a radiation so faint its source could not be traced. And it registered whenever Lorry had one of those dreams. Unfortunately, the machine was very new, very much in the untested stage, and its performance when checked later in the lab was erratic enough so the powers-that-be questioned all its readings. They produced a half dozen answers to account for that tape, and Lorry only caught the recording as long as he was on a big bay to the south.
"Then when two check flights came in later, carrying perfected machines and getting no recordings, it was all written off as a mistake in the first experiment. A planet such as Warlock is too big a find to throw away when there was no proof of occupancy. And the settlement boys rushed matters right along."
Shann recalled his own vivid dream of the skull-rock set in the lap of water—this sea? And another small point fell into place to furnish the beginning of a pattern. "I was asleep onthe raft when I dreamed about that skullmountain," he said slowly, wondering if he were making sense.
Thorvald's head came up with the alert stance of Taggi on a strong game scent.
"Yes, on the raft you dreamed of a skull-rock. And I of a cavern with a green veil. Both of us were on water—water which had an eventual connection with the sea. Could water be a conductor? I wonder...." Once again his hand went into his blouse. He crossed the strip of gravel beach and dipped fingers into the water, letting the drops fall on the carved disk he now held in his other hand.
"What are you doing?" Shann could see no purpose in that.
Thorvald did not answer. He had pressed wet hand to dry now, palm to palm, the coin cupped tightly between them. He turned a quarter circle, to face the still distant open sea.
"That way." He spoke with a new odd tonelessness.
Shann stared into the other's face. All the eager alertness of only a moment earlier had been wiped away. Thorvald was no longer the man he had known, but in some frightening way a husk, holding a quite different personality. The younger Terran answered his fear with an attack from the old days of rough in-fighting in the Dumps of Tyr. He brought his right hand down hard in a sharp chop across the officer's wrists. The bone coin spun to the sand and Thorvald stumbled, staggering forward a step or two. Before he could recover balance Shann had stamped on the medallion.
Thorvald whirled, his stunner drawn with a speed for which Shann gave him high marks. But the younger man's own weapon was already out and ready. And he talked—fast.
"That thing's dangerous! What did you do—what did it do to you?"
His demand got through to a Thorvald who was himself again.
"What wasIdoing?" came a counter demand.
"You were acting like a mind-controlled."
Thorvald stared at him incredulously, then with a growing spark of interest.
"The minute you dripped water on that thing you changed," Shann continued.
Thorvald reholstered his stunner. "Yes," he mused, "whydidI want to drip water on it? Something prompted me...." He ran his still damp hand up the angle of his jaw, across his forehead as if to relieve some pain there. "What else did I do?"
"Faced to the sea and said 'that way,'" Shann replied promptly.
"And why did you move in to stop me?"
Shann shrugged. "When I first touched that thing I felt a shock. And I've seen mind-controlled——" He could have bitten his tongue for betraying that. The world of the mind-controlled was very far from the life Thorvald and his kind knew.
"Very interesting," commented the other. "For one of so few years you seem to have seen a lot, Lantee—and apparently remembered most of it. But I would agree that you are right about this little plaything; it carries a danger with it, being far less innocent than it looks." He tore off one of the fluttering scraps of rag which now made up his sleeve. "If you'll just remove your foot, we'll put it out of business for now."
He proceeded to wrap the disk well in his bit of cloth, taking care not to touch it again with his bare fingers while he stowed it away.
"I don't know what we have in this—a key to unlock a door, a trap to catch the unwary. I can't guess how or why it works. But we can be reasonably sure it's not just some carefree maiden's locket, nor the equivalent of a credit to spend in the nearest bar. So it pointed me to the sea, did it? Well, that much I am willing to allow. Maybe we'll be able to return it to the owner,afterwe learn who—or what—that owner is."
Shann gazed down at the green water, opaque, not to be pierced to the depths by human sight. Anything might lurk there. Suddenly the Throgs became normal when balanced against an unknown living in the murky depths of an aquaticworld. Another attack on the Throg-held camp could be well preferred to such exploration as Thorvald had in mind. Yet Shann did not voice any protest as the Survey officer faced again in the same direction as the disk had pointed him moments before.
A wind from the west sprang up an hour before sunset, lashing waves inland until their spray was a salt mist in the air, a mist to sodden clothing, plaster hair to the skull, leaving a brine slime across the skin. Yet Thorvald hunted no shelter, in spite of the promise in the rough shoreline at their backs. The sand in which their boots slipped and slid was coarse stuff, hardly finer than gravel, studded with nests of drift—bone-white or grayed or pale lavender—smoothed and stored by the seasons of low tides and high, seasonal storms and hurricanes. A wild shore and a forbidding one, to arouse Shann's distrust, perhaps a fitting goal for that disk's guiding.
Shann had tasted loneliness in the mountains, experienced the strange world of the river at night lighted by the wan radiance of glowing shrubs and plants, forced the starkness of the heights. Yet there had been through all that journeying a general resemblance to his own past on other worlds. A tree was a tree, whether it bore purple foliage or was red-veined. A rock was a rock, a river a river. They were equally hard and wet on Warlock or Tyr.
But now a veil he could not describe, even in his own thoughts, hung between him and the sand over which he walked, between him and the sea which sent spray to wet his torn clothing, between him and that wild wrack of long-ago storms. He could put out his hand and touch sand, drift, spray; yet they were a setting where something lay hidden behind that setting—something watched, calculatingly, withintelligence, and a set of emotions and values he did not, could not share.
"... storm coming." Thorvald paused in the buffeting of wind and spray, watching the fury of the tossing sea. The sun was still a pale smear just above the horizon. And it gave light enough to make out that trickle of islands melting out to obscurity.
"Utgard——"
"Utgard?" Shann repeated, the strange word holding no meaning for him.
"Legend of my people." Thorvald smeared spray from his face with one hand. "Utgard, those outermost islands where dwell the giants who are the mortal enemies of the old gods."
Those dark lumps, most of them bare rock, only a few crowned with stunted vegetation, might well harboranything, Shann decided, giants or the malignant spirits of any race. Perhaps even the Throgs had their tales of evil things in the night, beetle monsters to people wild, unknown lands. He caught at Thorvald's arm and suggested a practical course of action.
"We'll need shelter before the storm strikes." To Shann's relief the other nodded.
They trailed back across the beach, their backs now to the sea and Utgard. That harsh-sounding name did so well fit the line of islands and islets, Shann repeated it to himself. Here the beach was narrow, a strip of blue sand-gravel walled by wave-worn boulders. And from that barrier of stones piled into a breastwork by chance, interwoven with bone-bare drift, arose the first of the cliffs. Shann studied the terrain with increasing uneasiness. To be caught between a sea, whipped inland by a storm wind, and that cliff would be a risk he did not like to consider, as ignorant of field lore as he was. They must locate some break nearer than the fiord, down which they had come. And they must find it soon, before the daylight was gone and the full fury of bad weather struck.
In the end the wolverines discovered an exit, just as they had found the passage through the mountain. Taggi nosedinto a darker line down the face of the cliff and disappeared, Togi duplicating that feat. Shann trailed them, finding the opening a tight squeeze.
He squirmed into dimness, his outstretched hands meeting a rough stone surface sloping upward. After gaining a point about eight feet above the beach he was able to look back and down through the seaward slit. Open to the sky the crevice proved a doorway to a narrow valley, not unlike those which housed the fiords, but provided with a thick growth of vegetation well protected by the high walls.
Working as a now well-rehearsed team, the men set up a shelter of saplings and brush, the back to the slit through which wind was still able to tear a way. Walled in by stone and knowing that no Throg flyer would attempt to fly in the face of the coming storm, they dared make a fire. The warmth was a comfort to their bodies, just as the light of the flames, men's age-old hearth companion, was a comfort to the fugitives' spirits. Those dancing spears of red, for Shann at least, burned away that veil of other-worldliness which had enwrapped the beach, providing in the night an illusion of the home he had never really known.
But the wind and the weather did not keep truce very long. A wailing blast around the upper peaks produced a caterwauling to equal the voices of half a dozen Throg hounds. And in their poor shelter the Terrans not only heard the thunderous boom of surf, but felt the vibration of that beat pounding through the very ground on which they lay. The sea must have long since covered the beach over which they had come and was now trying its strength against the rock of the cliff barrier. They could not talk to each other over that din, although shoulder touched shoulder.
The last flush of amber vanished from the sky with the speed of a dropped curtain. Tonight no period of twilight divided night from day, but their portion of Warlock was plunged abruptly into darkness. The wolverines crowded into their small haven, whining deep in their throats. Shann ran his hands along their furred bodies, trying to give them areassurance he himself did not feel. Never before when on stable land had he been so aware of the unleashed terrors nature could exert, the forces against which all mankind's controls were as nothing.
Time could no longer be measured by any set of minutes or hours. There was only darkness, the howling winds, and the salty rain which must be in part the breath of the sea driven in upon them. The comforting fire vanished, chill and dankness crept up to cramp their bodies, so that now and again they were forced to their feet, to swing arms, stamp, drive the blood into faster circulation.
Later came a time when the wind died, no longer driving the rain bullet-hard against and through their flimsy shelter. Then they slept in the thick unconsciousness of exhaustion.
A red-purple skull—and from its eye sockets the flying things—kept coming ... going.... Shann trod on an unsteady foundation which dipped under his weight as had the raft of the river voyage. He was drawing nearer to that great head, could see now how waves curled about the angle of the lower jaw, slapping inward between gaps of missing teeth—which were really broken fangs of rock—as if the skull now and then sucked reviving moisture from the water. The aperture marking the nose was closer to a snout, and the hole was dark, dark as the empty eye sockets. Yet that darkness was drawing him past any effort to escape he could summon. And then that on which he rode so perilously was carried forward by the waves, grated against the jawbone, while against his own fighting will his hands arose above his head, reaching for a hold to draw his shrinking body up the stark surface to that snout-passage.
"Lantee!" A hand jerked him back, broke that compulsion—and the dream. Shann opened his eyes with difficulty, his lashes seemed glued to his cheeks.
He might have been surveying a submerged world. Thin streamers of fog twined up from the earth as if they grew from seeds planted by the storm. But there was no wind, no sound from the peaks. Only under his stiff body Shann couldstill feel that vibration which was the sea battering against the cliff wall.
Thorvald was crouched beside him, his hand still urgent on the younger man's shoulder. The officer's face was drawn so finely that his features, sharp under the tanned skin, were akin to the skull Shann still half saw among the ascending pillars of fog.
"Storm's over."
Shann shivered as he sat up, hugging his arms to his chest, his tattered uniform soggy under that pressure. He felt as if he would never be warm again. When he moved sluggishly to the pit where they had kindled their handful of fire the night before he realized that the wolverines were missing.
"Taggi——?" His voice sounded rusty in his own ears, as if some of the moisture thick in the air about them had affected his vocal cords.
"Hunting." Thorvald's answer was clipped. He was gathering a handful of sticks from the back of their lean-to, where the protection of their own bodies had kept that kindling dry. Shann snapped a length between his hands, dropped it into the pit.
When they did coax a blaze into being they stripped, wringing out their clothing, propping it piece by steaming piece on sticks by the warmth of the flames. The moist air bit at their bodies and they moved briskly, striving to keep warm by exercise. Still the fog curled, undisturbed by any shaft of sun.
"Did you dream?" Thorvald asked abruptly.
"Yes." Shann did not elaborate. Disturbing as his dream had been, the feeling that it was not to be shared was also strong, as strong as some order.
"And so did I," Thorvald said bleakly. "You saw your skull-mountain?"
"I was climbing it when you awoke me," Shann returned unwillingly.
"And I was going through my green veil when Taggi took off and wakened me. You are sure your skull exists?"
"Yes."
"And so am I that the cavern of the veil is somewhere on this world. But why?" Thorvald stood up, the firelight marking plainly the lines between his tanned arms, his brown face and throat, and the paleness of his lean body. "Why do we dream those particular dreams?"
Shann tested the dryness of a shirt. He had no reason to try and explain the wherefore of those dreams, only was he certain that he would sometime, somewhere, find that skull, and that when he did he would climb to the doorway of the snout, pass behind to depths where the flying things might nest—not because he wanted to make such an expedition, but because he must.
He drew his hands across his ribs, where pressure still brought an aching reminder of the crushing force of the energy whip the Throgs had wielded. There was no extra flesh on his body, yet muscles slid easily under the skin, a darker skin than Thorvald's, deepening to a warm brown where it had been weathered. His hair, unclipped now for a month, was beginning to curl about his head in tight dark rings. Since he had always been the youngest or the smallest or the weakest in the world of the Dumps, of the Service, of the Team, Shann had very little personal vanity. He did possess a different type of pride, born of his own stubborn achievement in winning out over a long roster of discouragements, failures, and adverse odds.
"Why do we dream?" he repeated Thorvald's question. "No answer, sir." He gave the traditional reply of the Service recruit. And a little to his surprise Thorvald laughed with a tinge of real amusement.
"Where do you come from, Lantee?" He asked as if he were honestly interested.
"Tyr."
"Caldon mines." The Survey officer automatically matched planet to product. "How did you come into Survey?"
Shann drew on his shirt. "Signed on as casual labor," he returned with a spark of defiance. Thorvald had joined theService the right way as a cadet, then a Team man, finally an officer, climbing that nice even ladder with every rung ready for him when he was prepared to mount it. What did his kind know about the labor Barracks where the dull-minded, the failures, the petty criminals on the run, lived hard under a secret social system of their own? It had taken every bit of physical endurance and energy, every fraction of stubborn will Shann could summon, for him to survive his first three months in those barracks—unbroken and still eager to be Survey. He could still wonder at the unbelievable chance which had rescued him from that merely because Training Center had needed another odd hand to clean cages and feed troughs for the experimental animals.
And from the center he made a Team, because when working in a smaller group his push and attention to duty had been noticed and had paid off. Three years it had taken, but hehadmade Team stature. Not that that meant anything now. Shann pulled his boots on over the legs of rough dried coveralls and glanced up, to find Thorvald watching him with a new, questioning directness the younger man could not understand.
Shann sealed his blouse and stood up, knowing the bite of hunger, dull but persistent. It was a feeling he had had so many times in the past that now he hardly gave it a second thought.
"Supplies?" He brought the subject back to the present and the practical. What did it matter why or how one Shann Lantee had come to Warlock in the first place?
"What we have left of the concentrates we had better keep for emergencies." Thorvald made no move to open the very shrunken bag he had brought from the scoutship.
He walked over to a rocky outcrop and tugged loose a yellowish tuft of plant, neither moss nor fungi but sharing attributes of both. Shann recognized it without enthusiasm as one of the varieties of native produce which could be safely digested by Terran stomachs. The stuff was almost tasteless and possessed a rather unpleasant odor. Consumed in bulk itwould satisfy hunger for a time. Shann hoped that with the wolverines to aid they could go back to hunting soon.
However, Thorvald showed no desire to head inland where they might expect to locate game. He disagreed with Shann's suggestion for tracking Taggi and Togi when those two emerged from the underbrush obviously well fed and contented after their early morning activity.
When Shann protested with some heat, the other countered: "Didn't you ever hear of fish, Lantee? After a storm such as last night's, we ought to discover good pickings along the shore."
But Shann was also sure that it was not only the thought of food which drew Thorvald back to the sea.
They crawled back through the bolt hole. The beach of gravel-sand had vanished save for a narrow ribbon of land just at the foot of the cliffs, where the water curled in white lace about the barrier of boulders. There was no change in the dullness of the sky; no sun broke through the thick lid of clouds. And the green of the sea was ashened to gray which matched that overcast until one could strain one's eyes trying to find the horizon, unable to mark the dividing line here between air and water.
Utgard was a broken necklace, the outermost island-beads lost, the inner ones more isolated by the rise in water, more forbidding. Shann let out a startled hiss of breath.
The top of a near-by rock detached itself, drew up into a hunched thing of armor-plated scales and heavy wide-jawed head. A tail cracked into the air; a double tail split into equal forks for half-way down its length. A leg lifted as a forefoot, webbed, clawed for a new hold. This sea beast was the most formidable native thing he had sighted on Warlock, approaching in its ugliness the hound of the Throgs.
Breathing in labored gusts, the thing slapped its tail down on the stones with a limpness which suggested that the raising of that appendage had overtaxed its limited supply of strength. The head sank forward, resting across one of the forelimbs. Then Shann sighted the fearsome wound in the side justbefore one of the larger hind legs, a ragged hole through which pumped with every one of those breaths a dark purplish stream, licked away by the waves as it trickled slickly down the rock.
"What is that?"
Thorvald shook his head. "Not on our records," he replied absently, studying the dying creature with avid attention. "Must have been driven in by the storm. This proves there is more in the sea then we knew!"
Again the forked tail lifted and fell, the head, raised from the forelimb, stretching up and back until the white underfolds of the throat were exposed as the snout pointed almost vertically to the sky. The jaws opened and from between them came a moaning whistle, a complaint which was drowned out by the wash of the waves. Then, as if that was the last effort, the webbed, clawed feet relaxed their grip of the rock and the scaled body slid sidewise, out of their sight, into the water. There was a feather of spume to mark the plunge and nothing else.
Shann, watching to see if the reptile would surface again, sighted another object, a rounded shape floating on the sea, bobbing lightly as had their river raft.
"Look!"
Thorvald's gaze followed his pointing finger and then before Shann could protest, the officer leaped outward from their perch on the cliff to the broad rock where the scaled sea dweller had lain moments earlier. He stood there, watching that drifting object with the closest attention, as Shann made the same crossing in his wake.
The drifting thing was oval, perhaps some six feet long and three wide, the mid point rising in a curve from the water's edge. As far as Shann could make out in the half-light the color was a reddish-brown, the surface rough. And he thought by the way that it moved that it must be flotsam of the storm, buoyant enough to ride the waves with close to cork resiliency. To Shann's dismay his companion began to strip.
"What are you going to do?"
"Get that."
Shann surveyed the water about the rock. The forked tail had sunk just there. Was the Survey officer mad enough to think he could swim unmenaced through a sea which might be infested with more such creatures? It seemed that he was, for Thorvald's white body arched out in a dive. Shann waited, half crouched and tense, as though he could in some way attack anything rising from the depths to strike at his companion.
A brown arm flashed above the surface. Thorvald swam strongly toward the floating object. He reached it, his outstretched hand rasping across the surface. And it responded so quickly to that touch that Shann guessed it was even lighter and easier to handle than he had first thought.
Thorvald headed back, herding the thing before him. And when he climbed out on the rock, Shann was pulling up his trophy. They flipped the find over, to discover it hollow. They had, in effect, a ready-made craft not unlike a canoe with blunted bows. But the substance was surely organic: Was it shell? Shann speculated, running his finger tips over the irregular surface.
The Survey officer dressed. "We have our boat," he commented. "Now for Utgard——"
Use this frail thing to dare the trip to the islands? But Shann did not protest. If the officer determined to try such a voyage, he would do it. And neither did the younger man doubt that he would accompany Thorvald.
Once again the beach was a wide expanse of shingle, drying fast under a sun hotter than any Shann had yet known on Warlock. Summer had taken a big leap forward. The Terrans worked in partial shade below a cliffoverhang, not only for the protection against the sun's rays, but also as a precaution against any roving Throg air patrol.
Under Thorvald's direction the curious shell dragged from the sea—if it were a shell, and the texture as well as the general shape suggested that—was equipped with a framework to act as a stabilizing outrigger. What resulted was certainly an odd-looking craft, but one which obeyed the paddles and rode the waves easily.
In the full sunlight the outline of islands was clear-cut—red-and-gray-rock above an aquamarine sea. The Terrans had sighted no more of the sea monsters, and the major evidence of native life along the shore was a new species of clak-claks, roosting in cliff holes and scavenging along the sands, and various queer fish and shelled things stranded in small tide pools—to the delight of the wolverines, who fished eagerly up and down the beach, ready to investigate all debris of the storm.
"That should serve." Thorvald tightened the last lashing, straightening up, his fists resting on his hips, to regard the craft with a measure of pride.
Shann was not quite so content. He had matched the Survey officer in industry, but the need for haste still eluded him. So the ship—such as it was—was ready. Now they would beoff to explore Thorvald's Utgard. But a small and nagging doubt inside the younger man restrained his enthusiasm over such a voyage. Fork-tail had come out of the section of ocean which they must navigate in this very crude transport. And Shann had no desire to meet an uninjured and alert fork-tail in the latter's own territory.
"Which island do we head for?" Shann kept private his personal doubts of their success. The outmost tip of that chain was only a distant smudge lying low on the water.
"The largest ... that one with trees."
Shann whistled. Since the night of the storm the wolverines were again more amenable to the very light discipline he tried to keep. Perhaps the fury of that elemental burst had tightened the bond between men and animals, both alien to this world. Now Taggi and his mate padded toward him in answer to his summons. But would the wolverines trust the boat? Shann dared not risk their swimming, nor would he agree to leaving them behind.
Thorvald had already stored their few provisions on board. And now Shann steadied the craft against a rock which served them as a wharf, while he coaxed Taggi gently. Though the wolverine protested, he at last scrambled in, to hunch at the bottom of the shell, the picture of apprehension. Togitooklonger to make up her mind. And at length Shann picked her up bodily, soothing her with quiet speech and stroking hands, to put her beside her mate.
The shell settled under the weight of the passengers, but Thorvald's foresight concerning the use of the outrigger proved right, for the craft was seaworthy. It answered readily to the dip of their paddles as they headed in a curve, keeping the first of the islands between them and the open sea for a breakwater.
From the air, Thorvald's course would have been a crooked one, for he wove back and forth between the scattered islands of the chain, using their lee calm for the protection of the canoe. About two thirds of the group were barren rock, inhabited only by clak-claks and creatures closer to true Terranbirds in that they wore a body plumage which resembled feathers, though their heads were naked and leathery. And, Shann noted, the clak-claks and the birds did not roost on the same islands, each choosing their own particular home while the other species did not invade that territory.
The first large-sized island they approached was crowned by trees, but it had no beach, no approach from sea level. Perhaps it might be possible to climb to the top of the cliff walls. But Thorvald did not suggest that they try it, heading on toward the next large outcrop of land and rock.
Here white lace patterned in a ring well out from the shore to mark a circle of reefs. They nosed their way patiently around the outer circumference of that threatening barrier, hunting the entrance to the lagoon. Within, there were at least two beaches with climbable ascents to the upper reaches inland. Though Shann noted that the vegetation showing was certainly not luxuriant, the few trees within their range of vision being pallid growths, rather like those they had sighted on the fringe of the desert. Leather-headed flyers wheeled out over their canoe, coasting on outspread wings to peer down at the Terran invaders in a manner which suggested intelligent curiosity.
A full flock gathered to escort them as they continued along the outer line of the reef. Thorvald impatiently dug his paddle deeper. They had explored more than half of the reef now without chancing on an entrance channel.
"Regular fence," Shann commented. One could begin to believe that the barrier had been deliberately reared to frustrate visitors. Hot sunshine, reflected back from the surface of the waves, burned their exposed skin, so they dared not discard their ragged clothing. And the wolverines were growing increasingly restless. Shann did not know how much longer the animals would consent to their position as passengers without raising active protest.
"How about trying the next one?" he asked, knowing at the same time his companion was not in any mood to accept such a suggestion with good will.
The officer made no reply, but continued to use his steer paddle in a fashion which spelled out his stubborn determination to find a passage. This was a personal thing now, between Ragnar Thorvald of the Terran Survey and a wall of rock, and the man's will was as strongly rooted as those water-washed stones.
On the southwestern tip of the reef they discovered a possible opening. Shann eyed the narrow space between two fanglike rocks dubiously. To him that width of water lane seemed dangerously limited, the sudden slam of a wave could dash them against either of those pillars, with disastrous results, before they could move to save themselves. But Thorvald pointed their blunt bow toward the passage with seeming confidence, and Shann knew that as far as the officer was concerned, this was their door to the lagoon.
Thorvald might be stubborn, but he was not a fool. And his training and skill in such maneuvers was proved when the canoe rode in a rising swell in and by those rocks to gain the safety, in seconds, of the calm lagoon. Shann sighed with relief, but ventured no comment.
Now they must paddle back along the inner side of the reef to locate the beaches, for fronting them on this side of the well-protected island were cliffs as formidable as those which guarded the first of the chain at which they had aimed.
Shann glanced now and then over the side of the boat, hoping in these shallows to sight the sea bed or some of the inhabitants of these waters. But there was no piercing that green murk. Here and there nodules of rock projected inches or feet above the surface, awash in the wavelets, to be avoided by the voyagers. Shann's shoulders ached and burned, his muscles were unaccustomed to the steady swing of the paddles, and the fire of the sun stabbed easily through only two layers of ragged cloth to his skin. He ran a dry tongue over dryer lips and gazed eagerly ahead in search of the first of the beaches.
What was so important about this island that Thorvaldhadto make a landing here? The officer's stories of a native racewhich they might turn against the Throgs to their own advantage was thin, very thin indeed. Especially now, as Shann weighed an unsupported theory against that ache in his shoulders, the possibility of being marooned on the inhospitable shore ahead, against the fifty probable dangers he could total up with very little expenditure of effort. A small nagging doubt of Thorvald's obsession began to grow in his mind. How could Shann even be sure that that carved disk and Thorvald's hokus-pokus with it had been on the level? On the other hand what motive would the officer have for trying such an act just to impress Shann?
The beach at last! As they headed the canoe in that direction the wolverines nearly brought disaster on them. The animals' restlessness became acute as they sighted and scented the shore and knew that they were close. Taggi reared, plunged over the side of the craft, and Shann had just time to fling his weight in the opposite direction as a counterbalance when Togi followed. They splashed shoreward while Thorvald swore fluently and Shann grabbed to save the precious supply bag. In a shower of gravel the animals made land and humped well up on the strand before pausing to shake themselves and splatter far and wide the burden of moisture transported by their shaggy fur.
Ashore, the canoe became a clumsy burden and, light as the craft was, both of the men sweated to get it up on the beach without snagging the outrigger against stones and brush. With the thought of a Throg patrol in mind they worked swiftly to cover it.
Taggi raised an egg-patterned snout from a hollow and licked at the stippling of greenish yolk matting his fur. The wolverines had wasted no time in sampling the contents of a wealth of nesting places beginning just above the high-water mark, cupping two to four tough-shelled eggs in each. Treading a path among those clutches, the Terrans climbed a red-earthed slope toward the interior of the island.
They found water, not the clear running of a mountain spring, but a stalish pool in a stone-walled depression on thecrest of a rise, filled by the bounty of the rain. The warm liquid was brackish, but satisfied in part their thirst, and they drank eagerly.
The outer cliff wall of the island was just that, a wall, for there was an inner slope to match the outer. And at the bottom of it a showing of purple-green foliage where plants and stunted trees fought for living space. But there was nothing else, though they quartered that growing section with the care of men trying to locate an enemy outpost.
That night they camped in the hollow, roasted eggs in a fire, and ate the fishy-tasting contents because it was food, not because they relished what they swallowed. Tonight no cloud bank hung overhead. A man, gazing up, could see the stars. The stars and other things, for over the distant shore of the mainland they sighted the cruising lights of a Throg ship and waited tensely for that circle of small sparkling points to swing out toward their own hiding hole.
"They haven't given up," Shann stated what was obvious to them both.
"The settler transport," Thorvald reminded him. "If they do not take a prisoner to talk her in and allay suspicion, then—" he snapped his fingers—"the Patrol will be on their tails, but quick!"
So just by keeping out of Throg range, they were, in a way, still fighting. Shann settled back, his tender shoulders resting against a tree hole. He tried to count the number of days and nights lying behind him now since that early morning when he had watched the Terran camp die under the aliens' weapons. But one day faded into another so that he could remember only action parts clearly—the attack on the grounded scoutship, the sortie they had made in turn on the occupied camp, the dust storm on the river, the escape from the Throg ship in the mountain crevice, and their meeting with the hound. Then that storm which had driven them to seek cover after their curious experience with the disk. And now this day when they had safely reached the island.
"Why this island?" he asked suddenly.
"That carved piece was found here on the edge of this valley," Thorvald returned matter-of-factly.
"But today we found nothing at all——"
"Yet this island supplies us with a starting point."
A starting point for what? A detailed search of all the islands, great and small, in the chain? And how did they dare continue to paddle openly from one to the next with the Throgs sweeping the skies? They would have provided an excellent target today as they combed that reef for an hour or more. Wearily, Shann spread out his hands in the very faint light of their tiny fire, poked with a finger tip at smarting points which would have been blisters had those hands not known a toughening process in the past. More paddling tomorrow? But that was tomorrow, and at least they need not worry tonight about any Throg attack once they had doused the fire, an action which was now being methodically attended to by Thorvald. Shann pushed down on the bed of leaves he had heaped together. The night was quiet. He could hear only the murmur of the sea, a lulling croon of sound to make one sleep deep, perhaps dreamlessly.
Sun struck down, making a dazzle about him. Shann turned over drowsily in that welcome heat, stretching a little as might a cat at ease. Then he really awoke under the press of memory, and the need for alertness rode him once more. Beaten-down grass, the burnt-out embers of last night's fire were beside him. But of Thorvald and the wolverines there were no signs.
Not only did he now lie alone, but he was possessed by the feeling that he had not been deserted only momentarily, that Taggi, Togi and the Survey officer were indeed gone. Shann sat up, got to his feet, breathing faster, a prickle of uneasiness spreading in him, bringing him to that inner slope, up it to the crest from which he could see that beach where last night they had concealed the canoe.
Those lengths of brush and tufts of grass they had used for a screen were strewn about as if tossed in haste. And not too long before....
For the canoe was out in the calm waters within the reef, the paddle blade wielded by its occupant flashing brightly in the sun. On the shingle below, the wolverines prowled back and forth, whining in bewilderment.
"Thorvald——!"
Shann put the full force of his lungs into that hail, hearing the name ring from one of the small peaks at his back. But the man in the boat did not turn his head; there was no change in the speed of that paddle dip.
Shann leaped down the outer slope to the beach, skidding the last few feet, saving himself from going headfirst into the water only by a painful wrench of his body.
"Thorvald!" He tried calling again. But that head, bright under the sun did not turn; there was no answer. Shann tore at his clothes and kicked off his boots.
He did not think of the possibility of lurking sea monsters as he plunged into the water, swam for the canoeedgingalong the reef, plainly bound for the sea gate to the southwest. Shann was not a powerful swimmer. His first impetus gave him a good start, but after that he had to fight for each foot he gained, and the fear grew in him that the other would reach the reef passage before he could catch up. He wasted no more time trying to hail Thorvald, putting all his breath and energy into the effort of overtaking the craft.
And he almost made it, his hand actually slipping along the log which furnished the balancing outrigger. As his fingers tightened on the slimy wood he looked up, and loosed that hold again in time perhaps to save his life.
For when he ducked to let the water cover his head in an impromptu half dive, Shann carried with him a vivid picture, a picture so astounding that he was a little dazed.
Thorvald had stopped paddling at last, because that paddle had to be put to another use. Had Shann not released his hold on the log and gone under water, that crudely fashioned piece of wood might, have broken his skull. He saw only too clearly the paddle raised in both hands as an ugly weapon,and Thorvald's face, convulsed in a spasm of rage which made it as inhuman as a Throg's.
Sputtering and choking, Shann fought up to the air once more. The paddle was back at the task for which it had been carved, the canoe was underway again, its occupant paying no more attention to what lay behind than if hehadsuccessfully disposed of the man in the water. To follow would be only to invite another attack, and Shann might not be so lucky next time. He was not good enough a swimmer to try any tricks such as oversetting the canoe, not when Thorvald was an expert who could easily finish off a fumbling opponent.
Shann swam wearily to shore where the wolverines waited, unable yet to make sense of that attack in the lagoon. What had happened to Thorvald? What motive had led the other to leave Shann and the animals on this island, the island Thorvald had called a starting point in his search for the natives of Warlock? Or had every bit of that tall tale been invented by the Survey officer for some obscure purpose of his own, certainly no sane purpose? Against that logic Shann could only set the carved disk, and he had only Thorvald's word that that had been discovered here.
He dragged himself out of the water on his hands and knees and lay, winded and gasping. Taggi came to lick his face, nuzzle him, making a small, bewildered whimpering. While above, the leather-headed birds called and swooped, fearful and angry for their disturbed nesting place. The Terran retched, coughed up water, and then sat up to look around.
The spread of lagoon was bare. Thorvald must have rounded the south point of land and be very close to the reef passage, perhaps through it by now. Not stopping for his clothes, Shann started up the slope, crawling part of the way on his hands and knees.
He reached the crest again and got to his feet. The sun made an eye-dazzling glitter of the waves. But under the shade of his hands Shann saw the canoe again, beyond thereef, heading on out along the island chain, not back to shore as he had expected. Thorvald was still on the hunt, but for what? A reality which existed, or a dream in his own disturbed brain?
Shann sat down. He was very hungry, for that adventure in the lagoon had sapped his strength. And he was a prisoner along with the wolverines, a prisoner on an island which was half the size of the valley which held the Survey camp. As far as he knew, his only supply of drinkable water was that tank of evil-smelling rain which would be speedily evaporated by a sun such as the one now beating down on him. And between him and the shore was the sea, a sea which harbored such creatures as the fork-tail he had watched die.
Thorvald was still steadily on course, not to the next island in the chain, a small, bare knob, but to the one beyond that. He could have been hurrying to a meeting. Where and with what?
Shann got to his feet, started down to the beach once more, sure now that the officer had no intention of returning, that he was again on his own with only his wits and strength to keep him alive—alive and somehow free of this water-washed prison.
Shann took up the piece of soft chalklike stone he had found and drew another short white mark on the rust-red of a boulder well above tide level. That made three such marks, three days since Thorvald had marooned him. And he was no nearer the shore now than he had been on that first morning! He sat where he was by the boulder, aware that he should be up, trying to climb to the less accessible nests of the sea birds. The prisoners, man and wolverines, had cleaned out all those they had discovered on beach and cliffs. But at the thought of more eggs, Shann's stomach knotted in pain and he began to retch.
There had been no sign of Thorvald since Shann had watched him steer between the two westward islands. And the younger Terran's faint hope that the officer would return had died. On the shore a few feet away lay his own pitiful attempt to solve the problem of escape.
The force ax had vanished with Thorvald, along with all the rest of the meager supplies which had been the officer's original contribution to their joint equipment. Shann had used his knife on brush and small trees, trying to put together some kind of a raft. But he had not been able to discover here any of those vines necessary for binding, and his best efforts had all come to grief when he tried them in a lagoon launching. So far he had achieved no form of raft which would keep him afloat longer than five minutes, let alone support three of them as far as the next island.
Shann pulled listlessly at the framework of his latest try,fully disheartened. He tried not to think of the unescapable fact that the water in the rain tank had sunk to only an inch or so of muddy scum. Last night he had dug in the heart of the interior valley where the rankness of the vegetation was a promise of moisture, to uncover damp clay and then a brackish ooze. Far too little to satisfy both him and the animals.
There were surely fish somewhere in the lagoon. Shann wondered if the raw flesh of sea dwellers could supply the water they needed. But lacking net, line, or hooks, how did one fish? Yesterday, using his stunner, he had brought down a bird, to discover the carcass so rank even the wolverines, never dainty eaters, refused to gnaw it.
The animals prowled the two beaches, and Shann guessed they hunted shell dwellers, for at times they dug energetically in the gravel. Togi was busied in this way now, the sand flowing from under her pumping legs, her claws raking in good earnest.
And it was Togi's excavation which brought Shann a first ray of hope. Her excitement was so marked that he believed she was in quest of some worthwhile game and he moved across to inspect the pit. A patch of brown, which had been skimmed bare by one raking paw, made him shout.
Taggi shambled downslope, going to work beside his mate with an eagerness as open as hers. Shann hovered at the edge of the pit they were rapidly enlarging. The brown patch was larger, disclosing itself as a hump doming up from the gravel. The Terran did not need to run his hands over that rough surface to recognize the nature of the find. This was another shell such as had come floating in after the storm to form the raw material of their canoe.
However, as fast as the wolverines dug, they did not appear to make correspondingly swift headway in uncovering their find as might reasonably be expected. In fact, a witness could guess that the shell was sinking at a pace only a fraction slower than the burrowers were using to free it. Intrigued by that, Shann went back to the waterline, securedone of the lengths he had been trying to weave into his failures, and returned to use it as a makeshift shovel.
Now, with three of them at the digging, the brown hump was uncovered, and Shann pried down around its edge, trying to lever it up and over. To his amazement, his tool was caught and held, nearly jerked from his hands. To his retaliating tug the obstruction below-ground gave way, and the Terran sprawled back, the length of wood coming clear, to show the other end smashed and splintered as if it had been caught between mashing gears.
For the first time he understood that they were dealing not with an empty shell casing buried by drift under this small beach, but with a shell still inhabited by the Warlockian to whom it was a natural covering, and that that inhabitant would fight to continue ownership. A moment's examination of that splintered wood also suggested that the shell's present wearer appeared well able to defend itself.
Shann attempted to call off the wolverines, but they were out of control now, digging frantically to get at this new prey. And he knew that if he pulled them away by force, they were apt to turn those punishing claws and snapping jaws on him.
It was for their protection that he returned to digging, though he no longer tried to pry up the shell. Taggi leaped to the top of that dome, sweeping paws downward to clear its surface, while Togi prowled around its circumference, pausing now and then to send dirt and gravel spattering, but treading warily as might one alert for a sudden attack.
They had the creature almost clear now, though the shell still rested firmly on the ground, and they had no notion of what it might protect. It was smaller, perhaps two thirds the size of the one which Thorvald had fashioned into a seagoing craft. But it could provide them with transportation to the mainland if Shann was able to repeat the feat of turning it into an outrigger canoe.
Taggi joined his mate on the ground and both wolverines padded about the dome, obviously baffled. Now and then they assaulted the shell with a testing paw. Claws raked anddid not leave any marks but shallow scratches. They could continue that forever, as far as Shann could see, without solving the problem in the least.
He sat back on his heels and studied the scene in detail. The excavation holding the shelled creature was some three yards above the high-water mark, with a few more feet separating that from the point where lazy waves now washed the finer sand. Shann watched the slow inward slip of those waves with growing interest. Where their combined efforts had failed to win this odd battle, perhaps the sea itself could now be pressed into service.
Shann began his own excavation, a trough to lead from the waterline to the pit occupied by the obstinate shell. Of course the thing living in or under that covering might be only too familiar with salt water. But it had placed its burrow, or hiding place, above the reach of the waves and so might be disconcerted by the sudden appearance of water in its bed. However, the scheme was worth trying, and he went to work doggedly, wishing he could make the wolverines understand so they would help him.
They still prowled about their captive, scrapping at the sand about the shell casing. At least their efforts would keep the half-prisoner occupied and prevent its escape. Shann put another piece of his raft to work as a shovel, throwing up a shower of sand and gravel while sweat dampened his tattered blouse and was salt and sticky on his arms and face.
He finished his trench, one which ran at an angle he hoped would feed water into the pit rapidly once he knocked away the last barrier against the waves. And, splashing out into the green water, he did just that.
His calculations proved correct. Waves lapped, then flowed in a rapidly thickening stream, puddling out about the shell as the wolverines drew back, snarling. Shann lashed his knife fast to a stout length of sapling, so equipping himself with a spear. He stood with it ready in his hand, not knowing just what to expect. And when the answer to his water attackcame, the move was so sudden that in spite of his preparation he was caught gaping.
For the shell fairly erupted out of the mess of sand and water. A complete fringe of jointed, clawed brown limbs churned in a forward-and-upward dash. But the water worked to frustrate that charge. For one of the pit walls crumbled, over-balancing the creature so that the fore end of the shell lifted from the ground, the legs clawing wildly at the air.
Shann thrust with the spear, feeling the knife point go home so deeply that he could not pull his improvised weapon free. A limb snapped claws only inches away from his leg as he pushed down on the haft with all his strength. That attack along with the initial upset of balance did the job. The shell flopped over, its rounded hump now embedded in the watery sand of the pit while the frantic struggles of the creature to right itself only buried it the deeper.
The Terran stared down upon a segmented under belly where legs were paired in riblike formation. Shann could locate no head, no good target. But he drew his stunner and beamed at either end of the oval, and then, for good measure, in the middle, hoping in one of those three general blasts to contact the thing's central nervous system. He was not to know which of those shots did the trick, but the frantic wiggling of the legs slowed and finally ended, as a clockwork toy might run down for want of winding—and at last projected, at crooked angles, completely still. The shell creature might not be dead, but it was tamed for now.
Taggi had only been waiting for a good chance to do battle. He grabbed one of those legs, worried it, and then leaped to tear at the under body. Unlike the outer shell, this portion of the creature had no proper armor and the wolverine plunged joyfully into the business of the kill, his mate following suit.
The process of butchery was a bloody, even beastly job, and Shann was shaken before it was complete. But he kept at his labors, determined to have that shell, his one chance ofescape from the Island. The wolverines feasted on the greenish-white flesh, but he could not bring himself to sample it, climbing to the heights in search of eggs, and making a happy find of a niche filled with the edible moss-fungi.
By late afternoon he had the shell scooped fairly clean and the wolverines had carried away for burial such portions as they had not been able to consume at their first eating. Meanwhile, the leather-headed birds had grown bold enough to snatch up the fragments he tossed out on the water, struggling for that bounty against feeders arising from the depths of the lagoon.
At the coming of dusk Shann hauled the bloodstained, grisly trophy well up the beach and wedged it among the rocks, determined not to lose his treasure. Then he stripped and washed, first his clothing and then himself, rubbing his hands and arms with sand until his skin was tender. He was still exultant at his luck. The drift would supply him with materials for an outrigger. One more day's work—or maybe two—and he could leave. He wrung out his blouse and gazed toward the distant line of the shore. Once he had his new canoe ready he would try to make the trip back in the early morning while the mists were still on the sea. That should give him cover against any Throg flight.
That night Shann slept in the deep fog of bodily exhaustion. There were no dreams, nothing but an unconsciousness which even a Throg attack could not have pierced. He roused in the morning with an odd feeling of guilt. The water hole he had scooped in the valley yielded him some swallows tasting of earth, but he had almost forgotten the flavor of a purer liquid. Munching on a fistful of moss, he hurried down to the shore, half fearing to find the shell gone, his luck out once again.
Not only was the shell where he had wedged it, but he had done better than he knew when he had left it exposed in the night. Small things scuttled away from it into hiding, and several birds arose—scavengers had been busy lightening hisunwelcome task for that morning. And seeing how the clean-up process had gone, Shann had a second inspiration.
Pushing the thing down the beach, he sank it in the shallows with several rocks to anchor it. Within a few seconds the shell was invaded by a whole school of spiny-tailed fish, that ate greedily. Leaving his find to their cleansing, Shann went back to prospect the pile of raft material, choosing pieces which could serve for an outrigger frame. He was handicapped as he had been all along by the absence of the vines one could use for lashings. And he had reached the point of considering a drastic sacrifice of his clothing to get the necessary strips when he saw Taggi dragging behind him one of the jointed legs the wolverines had put in storage the day before.
Now and again Taggi laid his prize on the shingle, holding it firmly pinned with his forepaws as he tried to worry loose a section of flesh. But apparently that feat was beyond even his notable teeth, and at length he left it lying there in disgust while he returned to a cache for more palatable fare. Shann went to examine more closely the triple-jointed limb.
The casing was not as hard as horn or shell, he discovered upon testing; it more resembled tough skin laid over bone. With a knife he tried to loosen the skin—a tedious job requiring a great deal of patience, since the tissue tore if pulled away too fast. But with care he acquired a few thongs perhaps a foot long. Using two of these, he made a trial binding of one stick to another, and experimented farther, soaking the whole construction in sea water and then exposing it to the direct rays of the sun.
When he examined his test piece an hour later, the skin thongs had set into place with such success that the one piece of wood might have been firmly glued to the other. Shann shuffled his feet in a little dance of triumph as he went on to the lagoon to inspect the water-logged shell. The scavengers had done well. One scraping, two at the most, would have the whole thing clean and ready to use.
But that night Shann dreamed. No climbing of a skull-shapedmountain this time. Instead, he was again on the beach, laboring under an overwhelming compulsion, building something for an alien purpose he could not understand. And he worked as hopelessly as a beaten slave, knowing that what he made was to his own undoing. Yet he could not halt the making, because just beyond the limit of his vision there stood a dominant will which held him in bondage.
And he awoke on the beach in the very early dawn, not knowing how he had come there. His body was bathed in sweat, as it had been during his day's labors under the sun, and his muscles ached with fatigue.
But when he saw what lay at his feet he cringed. The framework of the outrigger, close to completion the night before, was dismantled—smashed. All those strips of hide he had so laboriously culled were cut—into inch-long bits which could be of no service.
Shann whirled, ran to the shell he had the night before pulled from the water and stowed in safety. Its rounded dome was dulled where it had been battered, but there was no break in the surface. He ran his hands anxiously over the curve to make sure. Then, very slowly, he came back to the mess of broken wood and snipped hide. And he was sure, only too sure, of one thing. He, himself, had wrought that destruction. In his dream he had built to satisfy the whim of an enemy; in reality he had destroyed; and that was also, he believed, to satisfy an enemy.
The dream was a part of it. But who or what could set a man dreaming and so take over his body, make him in fact betray himself? But then, what had made Thorvald maroon him here? For the first time, Shann guessed a new, if wild, explanation for the officer's desertion. Dreams—and the disk which had worked so strangely on Thorvald. Suppose everything the other had surmised was the truth! Then that diskhadbeen found on this very island, and here somewhere must lie a clue to the riddle.
Shann licked his lips. Suppose that Thorvald had been sent away under just such a strong compulsion as the one whichhad ruled Shann last night? Why was he left behind if the other had been moved away to protect some secret? Was it that Shann himself was wanted here, wanted so much that when he at last found a means of escape he was set to destroy it? That act might have been forced upon him for two reasons: to keep him here, and to impress upon him how powerless he was.
Powerless! A flicker of stubborn will stirred to respond to that implied challenge. All right, the mysterioustheyhad made him do this. But they had underrated him by letting him learn, almost contemptuously, of their presence by that revelation. So warned, he was in a manner armed; he could prepare to fight back.
He squatted by the wreckage as he thought that through, turning over broken pieces. And, Shann realized, he must present at the moment a satisfactory picture of despondency to any spy. A spy, that was it! Someone or something must have him under observation, or his activities of the day before would not have been so summarily countered. And if there was a spy, then there was his answer to the riddle. To trap the trapper. Such action might be a project beyond his resources, but it was his own counterattack.
So now he had to play a role. Not only must he search the island for the trace of his spy, but he must do it in such a fashion that his purpose would not be plain to the enemy he suspected. The wolverines could help. Shann arose, allowed his shoulders to droop, slouching to the slope with all the air of a beaten man which he could assume, whistling for Taggi and Togi.
When they came, his exploration began. Ostensibly he was hunting for lengths of drift or suitable growing saplings to take the place of those he had destroyed under orders. But he kept a careful watch on the animal pair, hoping by their reactions to pick up a clue to any hidden watcher.
The larger of the two beaches marked the point where the Terrans had first landed and where the shell thing had been killed. The smaller was more of a narrow tongue thrust outinto the lagoon, much of it choked with sizable boulders. On earlier visits there Taggi and Togi had poked into the hollows among these with their usual curiosity. But now both animals remained upslope, showing no inclination to descend to the water line.
Shann caught hold of Taggi's scruff, pulling him along. The wolverine twisted and whined, but he did not fight for freedom as he would have upon scenting Throg. Not that the Terran had ever believed one of those aliens was responsible for the happenings on the island.
Taggi came down under Shann's urging, but he was plainly ill at ease. And at last he snarled a warning when the man would have drawn him closer to two rocks which met overhead in a crude semblance of an arch. There was a stick of drift protruding from that hollow affording Shann a legitimate excuse to venture closer. He dropped his hold on the wolverines, stooped to gather in the length of wood, and at the same time glanced into the pocket.
Water lay just beyond, making this a doorway to the lagoon. The sun had not yet penetrated into the shadow, if it ever did. Shann reached for the wood, at the same time drawing his finger across the flat rock which would furnish a steppingstone for anything using that door as an entrance to the island.
Wet! Which might mean his visitor had recently arrived, or else merely that a splotch of spray had landed there not too long before. But in his mind Shann was convinced that he had found the spy's entrance. Could he turn it into a trap? He added a piece of drift to his bundle and picked up two more before he returned to the cliff ahead.
A trap.... He revolved in his mind all the traps he knew which could be used here. He already had decided upon the bait—his own work. And if his plans went through—and hope does not die easily—then this time he would not waste his labor either.
So he went back to the same job he had done the day before, making do with skin strips he had considered second-bestbefore, smoothing, cutting. Only the trap occupied his mind, and close to sunset he knew just what he was going to do and how.
Though the Terran did not know the nature of the unseen opponent, he thought he could guess two weaknesses which might deliver the other into his hands. First, the enemy was entirely confident of success in this venture. No being who was able to control Shann as completely and ably as had been done the night before would credit any prey with the power to strike back in force.
Second, such a confident enemy would be unable to resist watching the manipulation of a captive. The Terran was certain that his opponent would be on the scene somewhere when he was led, dreaming, to destroy his work once more.
He might be wrong on both of those counts, but inwardly he didn't believe so. However, he had to wait until the dark to set up his own answer, one so simple he was certain the enemy would not suspect it at all.