I
n that case there will be little chance of another attack of this sort to-night. At the same time, I would advise you to station extra guards there to-night and every night until I notify you otherwise. Caution them to watch the lights carefully and to give an alarm at once if they appear to get dim. In such a case, send men to the roof with rifles with orders to shoot to kill anyone they find there. I am going back to Washington and I am going to take Karuska, your No. 9764 with me. You had better have one of the guards in the corridor, where Denberg and Semensky are, wear this goldfish bowl, as you call it. A lot of plate glass—at least it will look like that—will come from Washington by plane. Cut it into sheets a foot square and use surgeon's plaster to make some temporary glass helmets for your men. I want all your guards to wear them until I either settle this matter or else send you some better helmets. Do you understand?"
"I understand all right, but I'm afraid that I can't do it. The wearing of such appliances would interfere with the efficiency of my men as guards."
"Brain and tongue paralysis would interfere rather more seriously, it seems to me. In any event, I have sufficient authority to enforce my request. If you are at all doubtful, call up the Attorney General and ask him."
The warden hesitated.
"If you don't mind, I think I will call Washington, Doctor," he said. "I will have to get authority to turn No. 9764 over to you in any event."
"Call all you wish, Mr. Lawson. Mr. Carnes is talking to Washington now and we'll have a clear line through for you in a few minutes. Meanwhile, get a set of shackles on Karuska and get him ready to travel by plane. He appears to be suffering from mental paralysis, but I don't know how his case will develop. He may go violently insane at any moment and I don't care to be aloft in a plane with an unbound maniac."
M
ajor Martin looked up from the prone figure of Karuska.
"His condition duplicates that of Lieutenant Breslau, Dr. Bird," he said. "We received your telephoned message this afternoon and we kept Breslau in a flood of sunlight until dusk, and then put him under sun-ray lamps. I don't know how you got on to that treatment, but it is having a very beneficial effect. He can already make inarticulate sounds, and his eyes are not quite as vacant at they were. If he keeps on improving as he has, he should be able to talk intelligently in a few days. If you wish to question this man, why not give him the same treatment?"
"I haven't time, Major. I must make him talk to-night if it is humanly possible. I called you in because you are the most eminent authority on the brain in the government service. Is there any way of artificially stimulating this man's brain so that we can force the secrets of his subconscious mind from him?"
The major sat for a moment in profound thought.
"Thereisa way, Doctor," he said at length, "but it is a method which I would not dare to use. By applying high frequency electrical stimulations to the medulla oblongata, at the same time bathing the cerebellum with ultra-violet, it might be done, but thechances are that either death or insanity would result. I would not do it."
"Major Martin, this man is a reckless and dangerous international criminal. If his gang carries out the plan which I fear they have formed, the lives of thousands, yes, of millions, may pay for your hesitation. I will assume full responsibility for the test if you will make it, and I have the authority of the President of the United States behind me."
"In that case, Doctor, I have no choice. The President is the Commander-in-chief of the army, and if those are his orders the experiment will be carried out. As a matter of form, I will ask that your orders be reduced to writing."
"I will write them gladly, Major. Please proceed with the experiment without delay."
M
ajor Martin bowed and spoke to a waiting orderly. The prostrate figure of Karuska was wheeled down a corridor into the electrical laboratory, and with the aid of the laboratory technician the surgeon made his preparations. The Moss lamp was arranged to throw a flood of ultra-violet over the Russian's cranium while the leads from a deep therapy X-ray tube was connected, one to the front of Karuska's throat and the other to the base of his brain. At a signal from the major, a nurse began to administer ether.
"I guarantee nothing, Dr. Bird," said the major. "The paralysis of the vocal cords may be physical, in which case the victim will still be unable to speak, regardless of the brain stimulation. If, however, the evident paralysis is due to some obscure influence on the brain, it may work."
"In any, event I will hold you blameless and thank you for your help," replied the doctor. "Please start the stimulation."
Major Martin closed a switch, and the hum of a high tension alternator filled the laboratory. The Russian quivered for a moment and then lay still. Major Martin nodded and Dr. Bird stepped to the side of the operating table.
"Ivan Karuska," he said slowly and distinctly, "do you hear me?"
The Russian's lips quivered and an unintelligible murmur came from them.
"Ivan Karuska," repeated Dr. Bird, "do you hear me?"
T
here was a momentary struggle on the part of the Russian and then a surprisingly clear voice came from his lips.
"I do."
"Who is the present head of the Young Labor party?"
Again there was a pause before the name "Saranoff" came from the lips of the insensible figure. Carnes gave a sharp exclamation but a gesture from the doctor silenced him.
"Is Saranoff alive?"
"Yes."
"Is he in the United States?"
"No, he is in London."
"Is he coming to the United States?"
"Yes."
"When?"
"I don't know. Soon. As soon as we are ready for him."
"Where is he living in London?"
"I don't know."
"How did you get word that you were to be rescued from Atlanta?"
"A message was smuggled in to me by O'Grady, a guard in our pay."
"What was that vitrilene helmet for?"
"To protect me from the effects of the black lamp."
"What is the black lamp?"
"I don't know exactly. Saranoff invented it. It gives a black light and it kills all other light except sunlight, and it paralyses the brain."
"Did you know that the model of the Breslau gun had been stolen?"
"Yes."
"What were you going to do after you were rescued from jail?"
"I was going to make a full-sizedgun. We have a disappearing gun platform built in the swamps at the juncture of the Potomac and Piscataway Creek. The gun was to be mounted there and we would shell Washington and institute a reign of terror. It would be a signal for uprisings all over the country."
"Is there a black lamp at that gun platform?"
"Yes. The black lamp will kill both the flash and the report."
"Where did you get the formula for radite?"
"We got it from one of Dr. Bird's assistants. His name—"
A
s he spoke the last few sentences, Karuska's voice had steadily risen almost to a shriek. As he endeavored to give the name of the doctor's treacherous helper his voice changed to an unintelligible screech and then died away into silence. Major Martin stepped forward and bent over the prone figure. Hurriedly he tore away the electrical connections and placed a stethoscope over the Russian's heart. He listened for a moment and then straightened up, his face pale.
"I hope that the information you obtained is worth a life, Dr. Bird," he said, his voice trembling slightly, "because it has cost one."
"It may easily save thousands of lives. I thank you, Major, and I will see that no blame attaches to you for your actions. I only wish that he had lived long enough to tell me the name of my assistant who has sold me to Saranoff. However, we'll get that information in other ways. Carnes, telephone Lawson at Atlanta to slam O'Grady into a cell pending investigation while I get Camp Meade on the wire and order up a couple of tanks. We are going to attack that gun emplacement at daybreak."
The telephone bell in the laboratory jangled sharply. Major Martin answered it and turned to Carnes.
"You're wanted on the telephone, Mr. Carnes."
The detective stepped forward and took the transmitter.
"Carnes speaking," he said. "Yes. Oh, hello, Bolton. Yes, we have Karuska here, or rather his body. Yes, Dr. Bird is here right now. You've what? Great Scott, wait a minute."
"Dr. Bird," he cried eagerly turning from the telephone, "Bolton has located the Washington headquarters of the Young Labor party."
Dr. Bird sprang to the instrument.
"Bird speaking, Bolton," he cried. "You've located their headquarters? Who's running it? Stanesky, eh? You're on the right track; he used to be Saranoff's right hand man. Where is the place located? I don't seem to recollect the spot. You have it well surrounded? Where are you speaking from? All right, we'll join you as quickly as we can. Keep your patrols out and don't let anyone get away."
He hung up the receiver and turned to Carnes.
"Did you have the car wait?" he asked. "Good enough; we'll jump for the Bureau and pick up all the vitrilene laying around loose and then join Bolton. He thinks that he has the whole outfit bottled up."
B
olton was waiting as the car rolled up and Dr. Bird leaped out.
"Where are they?" demanded the doctor eagerly.
"In an abandoned factory building about three hundred yards from here," replied the Chief of the Secret Service. "I traced them through New York. We have been watching the place ever since yesterday noon, and I know that Stanesky is in there with half a dozen others. No one has tried to leave since we set our watch. One funny thing has happened. About an hour ago a peculiar red glow suffused the whole building. It has died down a good deal since, but we can still see it through the windows. Could you tell us what it means?"
"No. I couldn't, Bolton, but we'll find out. How many men have you?"
"I have sixteen stationed around."
"That's more than we'll need. I have only vitrilene shields and helmets enough to equip six men. Pick out your three best men to go with us and we'll make a try at entering."
Bolton strode off into the darkness and returned in a few moments with three men at his heels. Dr. Bird spoke briefly to the operatives, all of them men who had been his companions on other adventures. He explained the need for the vitrilene helmets and shields, and without comment the six donned their armor and followed Bolton as he strode toward the building. As they approached, a dull red glow could be plainly seen through the windows, and Dr. Bird paused and studied the phenomenon for a moment.
"I don't know what that means, Bolton," he said softly, "but I don't like the looks of it. Stanesky is up to some devilment or other. I wouldn't be a bit surprised to find out that he knows all about your pickets and is ready for a raid."
"We'd better rush the place, then," muttered Bolton.
D
r. Bird nodded agreement and with a sharp command to his men Bolton broke into a run. Not a shot was fired as they approached, and the front door gave readily to Bolton's touch. At it opened there came a grating sound from the roof followed by the whir of a propeller. Dr. Bird ran out of the building and glanced up.
"A helicopter!" he cried. "They were expecting us and have escaped!"
He drew his pistol and fired ineffectually at the great bird-like ship which was rising almost noiselessly into the air. He cursed and turned again to the building.
Bolton still stood in the room which they had first entered. His flashlight showed it to be empty, but from under a door on the opposite side a line of dull red light glowed evilly. With his pistol ready in his hand, Bolton approached the door on hands and knees. When he reached it he threw his shoulder against it and dropped flat to the floor as the door swung open. No shot greeted him, and he stared for a moment and then rose to his feet.
"Nothing in here but some glass statues," he announced.
Dr. Bird followed him into the room. As he looked at what Bolton had called glass statues he gasped and shielded his eyes.
"God in Heaven!" he ejaculated. "Those were living men!"
B
efore them were three men or what had been three men. All stood in strained attitudes with a look of horror frozen on their faces. The thing that made the spectators shudder was that their bodies had, by some diabolical method, been rendered semi-transparent. The dull red light which suffused the room emanated from the three bodies. Dr. Bird examined them closely, being careful not to touch them.
"The identity of my treacherous assistant is known," he said grimly as he pointed at the middle figure. "It was Gerond. What is this?"
He took an envelope from the hand of the middle figure and opened it. A sheet of paper fell out and he picked it up and read it.
"My dear Mr. Bolton," ran the note. "Your methods of tracing and picketing my headquarters are so crude as to be almost laughable. This base has served its purpose and we were ready to abandon it in any event, but I couldn't resist the temptation to let you almost nab us. The three men whom you will find here are agents who failed in their duty. If you are interested in learning the method of their execution, you might take to heart the words of your colleague, Dr. Bird: 'The clue lies in those windows.'"
Carnes glanced at the windows and gave a cry of surprise. The glass was opaque, as had been the glass in the doctor's laboratory and the glass in the infirmary at Atlanta. The fogginghowever, was much more pronounced, and the opaque glass gave faintly the same red effulgence which came from the three bodies.
"What does it mean, Doctor?" he asked.
"I don't know, Carnes," said Dr. Bird slowly. "I foresee that I am going to have to do a great deal of work on short wave-lengths soon. It is doubtless the effect of some modification of the black lamp which has done it. Look out!"
H
e leaped to one side as he spoke, drawing Bolton and Carnes with him. A panel in the side of the wall opposite the doorway had slid silently open and through the opening poured out a beam of fiery red. Full on the three bodies it fell, and then spread out to fill the room. Dr. Bird had drawn the two nearest men out of the direct beam, but one of the secret service men stood full in its path. In the excitement of entering he had dropped his vitrilene shield and the livid ray fell full on his defenceless body. As they watched an expression of horror spread over his face and he strove to move to one side, but he was held helpless. Slowly he stiffened; and, as the ray bored through him, his body became semi-transparent and the same dull red glow which emanated from the three bodies they had found began to shine forth from him. Bolton strove to break from the doctor's grasp and rush to the rescue but Dr. Bird held him with a grip of iron.
"Too late," he said grimly. "Chalk up another murder to the arch fiend who has committed the others. I don't know the nature of that ray and vitrilene may not be an adequate defence against its full force. We had better get out of here and attack the place from the rear."
Carefully edging their way around the sides of the room, the five men made their way out through the door. Dr. Bird slammed the door shut behind him and led the way out of the building and around to the rear. A door loomed before them and he cautiously tried it. It gave to his touch and he entered. As he set his foot on the threshold a terrific explosion came from the interior of the building.
"Run!" he shouted as he led the way in retreat. "If that is a radite explosion it will act for several seconds!"
From a safe distance they watched. One corner of the building had been torn off by the force of the explosion, and as they watched the rest of the building gradually collapsed and sank into a pile of ruins.
"They had planned on a visit from us all right," said Dr. Bolton grimly. "They had a surprise for us any way we jumped. If we went in the front door, that devil's ray was to finish us, and if we went in the back door the whole place was arranged to blow up as we entered. I only hope that Stanesky thinks that he has got us all and doesn't expect an attack on his next base in the morning. If he doesn't, I think we may give him a rather unpleasant surprise. Of course, that lamp is smashed into atoms and buried under the debris, but I don't know what other devil's contraptions that ruin holds. Bolton, have your men picket it and allow no one near until I get back. I've got to get to a telephone and get a couple of tanks from Meade and a plane or two from Langley Field."
T
wo tanks made their way slowly across country. The front of each tank was protected by a heavy sheet of vitrilene, while from the turrets of the tanks projected the wicked looking muzzles of thirty-seven millimeter guns. Overhead two airplanes from Langley Field soared, scouting the country. Dr. Bird and Carnes rode in the leading tank.
"It ought to be somewhere near here, unless Karuska lied," said Carnes as he swept the country with a pair of binoculars.
"He didn't lie," returned Dr. Bird."It was his subconscious mind that spoke and it never lies. He spoke of the gun emplacement as being in a swamp and I have a strong idea that it is submersible. Of course, it is bound to be well camouflaged, both from land and from air observation."
The planes circled around again and again, quartering the air like a pair of well-trained bird dogs will quarter a hunting field. First high and then low they swooped back and forth, the tanks lumbering slowly along in the same direction. Presently the occupants of the leading tank saw one of the planes bank sharply and swing around. It dropped to an altitude of only a few hundred feet and turned and went back over the ground it had just crossed.
"I believe that fellow sees something!" exclaimed Carnes.
As he spoke, three green Very lights came from the cockpit of the plane. The tank driver gave a grunt of satisfaction and turned the nose of his vehicle in that direction. The second tank followed.
Hardly had they turned in the new direction before the ground began to get soft under their tracks and the heavy vehicles began to sink. The driver of the Doctor's tank forced it ahead, but the tank sank deeper in the mire until water flowed in around the feet of the occupants.
"I reckon we'll have to get out and walk pretty soon, Doctor," said the driver.
D
r. Bird grunted in acquiescence. The tank made its way forward a few yards before the engine sputtered and died. The second tank stopped when the first one did, fifty yards behind it. Donning vitrilene helmets and taking vitrilene shields in their hands, the crews of both tanks climbed out into the waist-deep water and gathered around the Doctor for orders.
"Form a skirmish line at ten-pace intervals and cross the swamp," he directed. "We may meet with no opposition, but if there is, the more scattered we are, the safer we will be. You all have hand grenades as well as your rifles?"
A murmur of assent answered him and the line formed and started across the swamp. They had gone perhaps a hundred yards when three red lights came from one of the planes circling overhead.
"Down!" cried the doctor, dropping to his knees in the muck.
Four hundred yards ahead of them a concrete platform emerged from the marsh and rose slowly into the air. It was roofed with a dome of what looked like plate glass, but which the doctor shrewdly suspected was vitrilene. When the base of the platform was two-feet above the level of the water the dome slid silently aside disclosing two men bending over a tiny gun. Dr. Bird leveled his binoculars.
"That's the Breslau gun model that was stolen as sure as I'm a foot high!" he cried. "They must have made some miniature shells and be planning to fire it."
Slowly a pall of intense blackness rose from the marsh and enveloped the platform and hid it from view. A whining noise came from overhead, and then a crash like a thunderbolt. The blast of the explosion threw the attackers face down in the swamp, and when they arose and looked back there was merely a gaping hole where the leading tank had been. The second tank suddenly seemed to rise in the air and fly into millions of tiny fragments, and a second thunderous blast sent them again to their knees.
"Radite!" bellowed Dr. Bird to Carnes. "Imagine the effect if that had been a full charge fired from a completed Breslau gun! Watch the planes, now. I think they are going to drop a few eggs on them."
T
he black mist cleared as if by magic and the platform was in plain view. The big glass dome rolled back into place as the two planes sweptover at an elevation of two thousand feet. From each one a small black cigar-shaped object was released and fell in a long parabola toward the earth. The glass dome which had been closing over the gun platform rolled quickly back and a long beam of intense blackness pierced the heavens. First one and then the other of the falling bombs disappeared from view into it, and then the black column faded from view. The two bombs fell with increasing speed but the dome closed over the platform before they struck. The two hit the dome at almost the same instant and instead of the blinding crash they expected, the watchers saw the bombs rebound from the dome and fall harmlessly into the water.
"Stymied!" muttered the doctor. "I wonder what other properties that confounded lamp has."
He resumed his advance, Carnes and the soldiers keeping abreast of him. When they were within two hundred yards of the platform it rose again and the transparent dome rolled back. A beam of black shot forth over the swamp, searching them out and hiding them from view. First one and then another felt the effects of the black beam; but the vitrilene which the Doctor had provided stood them in good stead, and, aside from a slight shortening of their breath, none of the attackers felt any the worse.
"Come on, men!" cried the Doctor as his athletic figure plowed forward through the breast-deep water. "That is their worst weapon and it is harmless against us!"
Cheering, they fought their way toward the platform. It sunk for a moment and then rose again. As the dome swung back a sharp crackle of machine-gun fire sounded and the water before them was whipped into foam by the plunging bullets. One of the soldiers gave a sharp cry and slumped forward into the water.
"Fire at will!" shouted the lieutenant in command.
A
crackle of rifle fire answered the tattoo of the machine-gun, and the sharp ping of bullets striking on the dome could be plainly heard. An occasional shot kicked up a spurt of white dust from the concrete, but the machine-gun kept up a steady rattle of fire and the soldiers kept their heads almost at the level of the water. There came the roar of an airplane motor, and one of the planes swept over the platform, a hundred yards in the air, with two machine-guns spraying streams of bullets onto the platform. Two men abandoned their machine-gun and crouched under the partially folded-back dome as the second plane swept over, and Dr. Bird took advantage of the lull to advance his party a few yards nearer. Again the defenders of the platform rushed to their gun, but the first plane had turned and swooped down with both guns going, and again they were forced to take shelter while the Doctor and his force made another advance.
The second plane had turned and followed the first, but the defenders had had enough. The transparent dome closed over them and the platform sank into the marsh. With a shout, Dr. Bird led the way forward again.
The attackers were within a hundred yards of the platform when it again rose above the surface of the water. The guns had disappeared, but in their place stood an airship. It was a small affair with stubby wings above which were two helicopter blades revolving at high speed. No sound of a motor could be heard.
The transparent dome rolled back and like a bullet the little craft shot into the air, followed by a futile volley from the soldiers. Hardly had it appeared than the two airplanes bore down on it with machine-guns going. The helicopter paid no attention to them for a moment, and then came a puff of smoke from its side. The leading plane swerved sharply and the helicopter fired again. The leadingplane maneuvered about, trying to get a machine-gun to bear, while the second plane climbed swiftly to get above the helicopter and pour a deadly stream of fire down into it. It gained position and swooped down to the attack, but another puff of smoke came from the side of the helicopter and there was a thunderous report and a blinding flash in the sky. As the smoke cleared away, no trace of the ill-fated plane could be seen. The helicopter hung motionless in the air as though daring the remaining plane to attack.
T
he plane accepted the challenge and bore down at full speed on the stranger. Again came a puff of smoke, but the plane swerved and an answering shot came from its side. It was above the helicopter, and the shell which missed its mark plunged to the ground. When it struck there came a roar and a flash and the whole earth seemed to shake. The helicopter shot upward into the air and forward, both its elevating fans and its propellers whirling blurs of light. The airplane followed at its sharpest climbing angle, but was helpless to compete with its swifter climbing rival.
"He's got away!" groaned Carnes.
"Not yet, old dear!" cried the Doctor hopping with excitement. "He isn't safe yet. I never told you, but one Breslau gun had been made and it is on that plane. It has deadly accuracy and is good for fifteen miles. That's Lieutenant Dreen at the controls and Mason at the gun."
As he spoke the plane swung around and made a half loop. For a few yards it flew upside down and then whirled swiftly. As it turned there came a sharp report and a puff of smoke from its rear cockpit. High above, the helicopter had ceased climbing and hovered motionless. As the plane fired, the helicopter shot forward like an arrow from a bow, and thereby spelled its doom. Not for nothing did Captain Mason bear the title of the best aerial gunner in the Air Corps. He had foreseen what the action of his opponent would be and had allowed for just such a move. Far up in the sky came a blinding flash and a cloud of smoke. When the smoke cleared the sky was empty, except for a little scattered debris falling slowly to the ground.
A
nd that's that!" exclaimed Dr. Bird as he finished his examination of the underground laboratory with which the gun platform connected. "The lamp has gone to glory with Breslau's gun model and two of the best brains of the Young Labor party. I am sure that Stanesky was one of those two men. I wish the whole gang had been on board."
"Don't you think that this is the end of it, Doctor?" asked Carnes.
"No, Carnes, I don't. We know that the real brains of this outfit is Saranoff, and Saranoff is still alive. He probably won't try to use his black lamp again, because I will have a defence against it in a short time, now that I have seen it in action, but he'll try something else. The whole object of life to a loyal citizen of Bolshevikia is to reduce the whole world to the barbarous level in which they hold Russia, and they will spare no pains or effort to accomplish it. The greatest obstacle to their success at present is the President of the United States. He is loved and respected by the whole world, and if he is spared he will forge the world into a great machine for the preservation of peace and universal good will. That would be fatal to Bolshevikia's plans, and they will spare no effort to remove him. By the grace of God, we have saved him from harm so far, but until we remove Saranoff permanently from the scene, I will never feel safe for him."
"What do you suppose they'll try next, Doctor?"
"That, Carnes, time alone will tell."
Agile as grasshoppers, those fierce war dogs ripped and worried their prey.Agile as grasshoppers, those fierce war dogs ripped and worried their prey.
T
he ice suddenly gave way under his foot, hurling Victor Nelson violently forward to lie in the deep snow at the bottom of a tiny crevasse, down which the merciless gale moaned like an anguished demon.
Only in dim legends did mankind remember Atlantis and the Lost Tribes—until Victor Nelson's extraordinary adventure in the unknown arctic.
"It's no use," he muttered bitterly. "We've fought hard, but we're done for."
He lay still, stupidly watching his breath form tiny beads of ice on the ends of the fur which lined his parka. Until that moment he had not realized how thoroughly exhausted he was. Every muscle of his starved, bruised body ached unbearably. It wasn't so bad lying there in the soft snow. He could rest, then look later for the ice hummock behind which the plane lay sheltered. Rest! That's what he needed, a good long rest.
But deep within him, a primal instinct stabbed his waning consciousness. "No," he gasped, and blinked his reddened eyes behind smoked goggles which dulled the shimmer of the aurora. "If I stop, I'll never get up."
Shaken by the terrific velocity of the arctic gale he numbly clambered to his feet, then stooped with a stiff awkward motion to retrieve a Winchester rifle which lay half buried in the snow beside the blurred imprint of his body.
"Wonder if Alden had any better luck?" The question burned dully in his brain. "Don't suppose so; there can't be anything alive in this God-awful wilderness." As he stumbled on he found no answer in an unbroken vista of wind-scored ice and drifting snow that, swirling high into the air, momentarily cut off the view of that black line of ice-capped mountains barely visible on the horizon.
"Yes, if he hasn't found anything, we'll be dead or frozen stiff before to-morrow."
H
is soul—that of a true explorer—revolted, not at the thought of death, but that his and Alden's courageously won discovery of a majestic mountain range towering high over a polar region marked "unexplored" on the maps would now never be made public.
Leaning forward against the merciless icy blast he painfully picked his way over a treacherous ice ridge, to be faintly encouraged by the fact that the towerlike hummock of ice marking the position of the plane now lay but a few hundred yards ahead.
Bitterly he cursed that demon of ill-fortune who had sent the blinding snow storm which had forced down the plane ten long days ago at the very beginning of its triumphant return flight to the base at Cape Richards. Since that hour the storm gods had emptied the vials of their wrath upon the luckless explorers. Day after day, cyclonic winds made all thought of a take-off suicidal in the extreme. Three daysago the last of their food had given out, and, he mused, starvation is an ill companion for despair.
Slip, slide and fall! On he fought until the final barrier was reached and he stood staring hopelessly down into a small natural amphitheater which sheltered the great monoplane. The ship was still there, its engine snugged in a canvas shroud and with the soft, dry snow banked up high in the lee of its silver gray fuselage. Numbly, like a man in the grip of a painful coma, Nelson shielded his face with a furry hand to scan the surrounding terrain. "Hell!" The door block of the igloo they had built was still snowed up; Alden was not there!
"He's not back," he muttered, while his body swayed beneath the gale which smote him with fierce, unseen fists. "Poor devil, I hope he hasn't lost the way."
All the bitterness of undeserved defeat stung his soul as he started down the incline into the hollow.
S
uddenly he paused. The rifle flew into the ready position and his chilled thumb drew back the hammer. "What's this?" On the snow at his feet was a bright, scarlet splash, dreadfully distinct against the white background. While his dazed brain struggled to register what his eyes saw, he looked to the right and left and discovered several more of the hideous spots. Then an object that gleamed dully in the polar twilight attracted his attention. He lumbered forward, stooped stiffly and caught up a long, half round strip of bronze.
"What? Why? Oh—I'm crazy. I'm seeing things!" The pain in his empty stomach was now becoming excruciating. To steady himself he shut his eyes, shook his head as though to clear it, then looked again at that strip of metal in his hand. Attached to it were two slender strips of leather like straps, ending in small, bronze buckles.
"Why, it's not from the plane," he stammered aloud. "Damned if it doesn't look like a greave the old Greek warriors used to wear to protect their shins."
Suddenly alarmed and mystified beyond words, he shuffled forward over the snow, the greave yet clutched in a fur gloved hand. Presently two more objects, already half buried by the stinging, swirling drifts, caught his attention. One was the stock of Alden's rifle, protruding starkly brown from the unrelieved whiteness, and the other was a broken wooden shaft that ended a graceful but wickedly sharp bronze spear head.
"I've either gone crazy," he said, "or I'm delirious. Yes, I must be clean nutty! Therecouldn'tbe a human settlement within a thousand miles. Let's see what's happened."
O
n the snow of a little wind-sheltered space behind the igloo he discovered the unmistakable and ominous signs of a struggle. An indefinite number of footprints, blurred but enormous in size, were marked in the snow. Here and there deep furrows mutely testified how Alden and the enemies against whom he struggled had reeled back and forth in vicious combat over a considerable area. Then, shaken by a new fear, he discovered Alden's left glove and a rag of some peculiar thick material that seemed to have a metallic finish. But what aroused his gravest fears were the numerous splashes of blood that here and there streaked the snow in gruesome relief.
Only a moment Nelson stood, shaken by the merciless wind, scanning the piece of bronzed armor between his gloved hands with a fresh interest. It was beautifully fashioned, and decorated at the knee point with the wonderfully wrought figure of a dolphin.
If he could only think clearly! But his brain seemed to lie in a red-hot skull. "Whatever's happened," he muttered, "I'd better not waste time; they couldn't have been here so long ago. Poor Alden! I wonder what kind of devils caught him?"
E
ven before he had finished the sentence the aviator had taken up the partially obliterated trail of spattered blood drops. That what he sought appeared to be a maraudering party of giants restrained him not at all. The one clear thought burning in his weary brain was that Richard Alden, his best friend—the man with whom he had traveled over half the world, by whose side he had faced many a perilous situation—must at that moment lie in peril, the extent of which he could only surmise.
"Must have been about a dozen of them," he said thickly. And, holding the Winchester ready, he commenced once more to plod on through the stinging sheets of wind-driven ice particles. More than once he had great difficulty in not losing that crimson trail, for here and there the restless, white crystals completely blotted out the splashes.
All at once Nelson checked his pathetically slow progress, finding himself on the top of an eminence, looking down in what appeared to be a vastly deep natural amphitheater of snow and ice. At the bottom, and perhaps a hundred yards distant, was a curious black oval from which appeared to rise a dense, wind-whipped column of whitish vapor.
"My eyes must be going back on me," muttered Nelson through stiffened lips. How intolerably heavy his fur suit seemed! His strength was about gone and that curious black mouthlike circle seemed infinitely far away. But, spurred by fears for his friend, he started downward for the precipitious trail leading directly towards it.
Once he stepped inside the crater, he became conscious of a terrific side pressure which gripped him as a whirlpool seizes a luckless swimmer. The wind buffetted him from all angles, dealing him powerful blows on face and body, which, too strong for his weary body, sent him reeling weakly, drunkenly across the hard, glare ice towards the vortex. Twice he slipped, each time finding it harder to arise. But at last he approached what on closer inspection proved to be a subterranean vent of black rock.
"Steam!" he gasped. "It's steam coming out of there!"
S
wayed by a dozen conflicting emotions, he paused, the Winchester barrel wavering like a reed in his enfeebled grasp.
"The whole thing's crazy," he decided. "I must be frozen and lying somewhere, delirious. Poor Dick! Can't help him much now."
Like a man in a nightmare who advances but feels nothing under his feet, Nelson staggered on towards that huge, gaping aperture of black rock. On the threshold a pool of melted snow water made him stare.
"Hell!" he said. "It's only a volcanic vent of some kind." Then dimly came the recollection of Eskimo legends concerning thermal springs beyond the desolate and unknown reaches of Grant Land.
His mind in an indescribable turmoil, Nelson splashed across a hundred yards of sodden snow, then shivered on wading knee deep through a pool of melted ice. Now he stood on the very threshold of that awful opening, dense clouds of vapor beating warmly against his chilled features.
His goggles fogged at once, blinding him effectively as, with reason staggering under the accumulated stress of starvation and the circumstances of Alden's disappearance, he groped his way a few feet into the vent. With his left hand he pulled up the glasses from his sunken, blood-shot eyes.
"It's warm, by God!" he cried in astonishment as the skin exposed by lifting the goggles came in contact with the air. "Must be some kind of earth-warmed cave."
I
ncreasingly mystified, he caught up his rifle and strode on down the passage, at that moment illuminated by the last unearthly rays ofthe aurora borealis. A single, dazzling beam played before him like a powerful searchlight, to light a high vaulted tunnel of basalt rocks which were distorted by some long-gone convulsion of the earth into a hundred weird cleavages and faults. For that brief instant he found he could see perhaps a hundred feet down into a high roofed passage, along the top of which poured a tremendous stream of billowing, writhing steam.
"If this doesn't beat all," he murmured; but for all of his apprehension he did not pause. Those bloody splashes bespeaking Alden's pressing need urged him on. "Looks like I'm taking a one way trip into Hell itself. Well, we'll soon see."
Slipping and sliding over an almost impassable array of black rocks and boulders, Nelson fought his way forward, conscious that with every stride the air grew damper and warmer. Soon trickles of sweat were pouring down over his chest, tickling unbearably.
Then all at once the ray of light faded, leaving him immersed in a blackness equalled only by the gloom of a subterranean vault. He stopped and, resting his rifle against a nearby invisible rock, threw back the parka hood and pulled off his gloves. He was amazed to feel how warm the strong air current was on his hands.
"Beats all," he muttered heavily. "I wonder where they've taken Alden?"