Scotty leaned over and picked up something that had dropped to the floor when Mac pulled out his handkerchief. "You dropped this, Mr. McCline."
Rick identified it easily. It was a tiny transistor, an integral part of modern electronic apparatus.
Mac took it in his big fingers. "Thanks. I must have stuck it in my pocket absent-mindedly while we were repairing the equipment."
"Where do you go when you're on a field radar job?" Rick asked. "Just tell me to mind my own business, if I get into anything classified."
"There's no classification on what we do," Pancho Kelly said. "Only the results. We go to Careless Mesa. Everyone knows that."
The boys let the conversation lag and ordered dinner. They didn't want to seem too inquisitive. Constant questions would only make Mac and Pancho suspicious.
Later, as they rode through the star-studded night in their jeep, Scotty suddenly asked, "What do you think of Big Mac and Pancho?"
Rick shrugged. He knew what had prompted Scotty's question. He had the same feeling himself. "They're friendly enough, but I think it's an act. What I mean, is ..."
"That they haven't any real interest in being friendly, they're just cordial for the sake of appearances," Scotty concluded.
"On the nose, pal. I get the feeling they could switch from casual conversation to mayhem without batting an eye."
Scotty thought it over for a moment. "Mac's the driving force of the pair, but I'd say they're equally tough. I'd guess Pancho is a combination of Irish and Mexican, both from his looks and his name."
"Is Pancho a name? Or a nickname?"
"Nickname. Usually short for Francisco."
Rick thought back over the past few days, and their meetings with Big Mac and Pancho. "Funny thing, Scotty. The casino is usually pretty busy, and mostly with men from Scarlet Lake. But instead of getting acquainted with many of them we always seem to sit near those two."
Scotty gave him a sideways glance. "What about it?"
"I think we do it instinctively," Rick went on. "Every time we walk in, they're deep in conversation. There's a kind of atmosphere about them, as though the talk is always very secret. None of the other men seem like that. They're more—well, open. No secrets. Know what I mean?"
Scotty nodded. "Now that you point it out, I do."
"So I think we sort of gravitate toward them automatically. On a hunch that we haven't even recognized, so to speak."
"Because there's more to be learned from them than from the others?"
"That's it!" Rick was glad he had finally put his feelings into words. "We'll keep an eye on those two," he said emphatically.
On the sixth day of their stay in Las Vegas, Lomac called. The boys hurried to the office and were told they could report to the base personnel office at once. They were given a map showing the location of the base. Scarlet Lake, they learned, was about two hours' drive northwest of Las Vegas.
They packed hurriedly, checked out, and loaded the jeep. After a brief stop for gas, they headed out Route 95. Within a few minutes they had left Las Vegas behind and were in open desert country.
The jeep was not capable of fast travel, and nearly an hour passed before they saw signs of civilization. It was the air force base at Indian Springs. They stopped for a coke, and topped off the gas tank. Rick bought a canteen and a desert water bag at the general store, and filled both.
A few miles beyond Indian Springs they saw the entrance road to the Atomic Energy Commission's Nevada Test Site, and the Sixth Army's Camp Desert Rock. After that, there was no sign of civilization for miles.
A few miles before the town of Lathrop Wells, Scotty spotted their turnoff. The sign was small and inconspicuous. It simply read: "Scarlet Lake," and an arrow was painted underneath the name.
The paving ended after a mile or two and became a very good dirt road. The jeep was climbing steadily now, and in a short time Scotty shifted to second gear.
"We must be nearly out of Nevada and into California," Scotty commented.
"Almost," Rick agreed. "According to the map, the base is right next to Death Valley." Suddenly he leaned forward as the jeep rounded a turn. Far below and still many miles away was the pinkish gleam of a dry lake bed. Scarlet Lake!
"I see where they got the name," Scotty said.
Rick grinned. "Scarlet Lake makes sense but some of the other names around here don't. Did you notice the town marked 'Steamboat' on the map? And not enough water to float a bar of soap."
"See anything of the base?"
"Not yet."
Five miles later they began to see signs that Scarlet Lake was occupied. Black strips indicated aircraft runways. Then, tiny concrete squares came into view. But not until they were in the valley, only a mile from the base, could they see buildings.
The buildings turned out to be a few single-story administrative shacks clustered around a check-in point. A uniformed guard waved them into a parking lot and told them to report to Security for badges.
They walked into the building marked "Security Office, Badge Division" and found a counter with another guard behind it. He took their names and asked for identification, then directed them to stand with chins resting on a tray. He slipped plastic letters into slots and formed their names, then took pictures with a fixed camera.
"Sit down and wait," he said. "We'll have these for you in five minutes."
Rick looked his surprise. "Can you process the pictures that fast?"
"Don't have to. This is a Polaroid camera."
Rick joined Scotty on a wooden bench. "I expected a barbed-wire fence. But there's no fence at all."
"The whole desert is a fence, I guess," Scotty surmised. "The only access roads are probably guarded, and the only other ways to get into the base would be by foot or horseback. No one could make it on foot, and anyone on horseback would attract instant attention."
Scotty probably was right, Rick thought. Still, it wasn't at all what he expected.
In a few moments the guard was back. He handed them laminated plastic badges with their names and pictures. At the bottom of Rick's were the numbers one, two, and three. Scotty's badge had only the numbers two and three.
"What do these mean?" Rick asked.
"Those are the areas where you're allowed to go. Area One is the blockhouse. Area Two is the main base and firing pads. Area Three is the machine shop and maintenance depot. You can go anywhere. Scott can go anywhere but inside the blockhouse. Sign these, please." He handed them forms in which they agreed to be bound by all security regulations, under penalty of the Espionage Act. They signed, and returned the forms.
"Go through the gate," the guard directed, "and report to the reception desk in Building Five. That's personnel. They'll take it from there."
They returned to the jeep and drove to the gate. The guard inspected their badges, compared the pictures with their faces, then waved them on.
"Taking no chances," Rick remarked. "There's Building Five."
The personnel office gave them another map, showing installations and buildings on the base itself, and assigned them to bunks nine and ten in Barracks Seven. Rick was told to report at eight in the morning to Dr. Gould in Building Twelve, while Scotty was told to report to Mr. Rhodes in Maintenance Building Twenty-three. They received a leaflet marked: "Read This."
They followed the map for another three miles, leaving the gate buildings out of sight behind a ridge of rock. Their map showed that the main cluster of buildings was three miles from the gate and nine miles from the blockhouse and the firing pads on the dry lake bed. Again, Rick began to appreciate Western distances.
The boys found their barracks without difficulty, and moved into a room containing four bunks. It wasn't elaborate, but it was adequate for a camp of this kind. It was clear that the other bunks were occupied, but at the moment their bunkmates were apparently out.
Rick stowed his gear in the locker with his bed number on it, then sat down to read the leaflet. It was a directory of camp facilities, plus a written lecture on security. He was allowed to say what kind of work he did, and that was about all.
"Let's look the place over," he suggested.
They located the mess halls, the base movie house, post exchange, and post office. There was also a laundry and a snack bar. Set off by itself was a recreation hall, equipped with TV sets, comfortable chairs, card tables, and pool tables.
Rick followed the map to the laboratory buildings, and was surprised to find that they were enormous sheds, like hangars. Most of the doors were wide open, and he caught glimpses of shapes that could only have been rocket sections. His pulse quickened. There was an atmosphere of excitement, of big jobs being performed. At least his quick imagination told him there was.
Then, in one shed he saw the broken remains of a rocket. From its size he concluded that it must be the Viking that had crashed. The sight brought sharp realization of the real job he and Scotty were here to do.
Rick checked his map. "Our barracks has space for eighty bunks. And, according to this, there are twenty-eight barracks."
"Interesting facts about Scarlet Lake," Scotty declaimed. "What about it?"
"That's over two thousand men."
"A lot of men," Scotty agreed. "What are you getting at?"
"Needles in haystacks. Out of more than two thousand we're supposed to pick one—the Earthman!"
Dr. Gerald Gould, known to the staff as "Gee-Gee," looked more like a high school football coach than a scientist. His blond hair was cropped short, and his face was boyish except for a beautifully waxed military-style mustache. His speech was a remarkable combination of slang and rocket jargon.
He asked, "Do you know vector analysis?"
Rick shook his head. "No, sir."
"Hmmm. Well, boy-oh, we'll plant you with the electronic cooks in the spaghetti department. It says in your job application that you've had plenty of experience in circuit wiring. Roger?"
"Yes, sir." Rick understood that he was to join the technicians in the wiring department. His eyes kept wandering into the huge shed that housed the project on which he was to work. He identified rocket sections, and pretty big ones at that. The rocket was not assembled, but apparently it would tower several stories into the air when assembly was complete. One thing puzzled, him, however. One section obviously had wings. They couldn't be anything else, even though they were tiny and thin as knives. He hadn't heard anything about rockets with wings.
Dr. Gould saw that he was staring with interest at the activity in the shed and grinned sympathetically. "Ever see a big rocket before?"
"Only in pictures," Rick replied.
"Well, you'll see plenty of them before we're through here."
Rick hesitated. "Sir, is it okay to ask what this is all about?"
"Sure it's okay. We have three projects underway at present. In the shed on the left is Orion, which is a two-stage rocket for deep penetration into the exosphere. It's about ready to shoot. In the shed on the right is Cetus, a sounding rocket for ionospheric measurements."
Dr. Gould paused. "If you don't get me, speak up and I'll scoop you the answers. Roger so far?"
Rick nodded. "I'm with you." He understood from the scientist's explanation that Orion was to travel far into the exosphere, actually beyond the atmosphere, while Cetus was a smaller, single-stage rocket for research in the ionosphere, the ionized layer of atmosphere just beyond the stratosphere. The projects, he realized, were named for constellations.
"In this shed we have Pegasus."
"Pegasus was a winged horse," Rick commented, "And aren't those airfoils on that rocket section near the back of the shed? Is that the connection?"
Dr. Gould chuckled. "Sharp-oh! Those are indeed airfoils. Wings for Pegasus. Now make with the reason, if you can."
Rick pondered. He knew rockets achieved stability through fins, or steerable motors, and that wings were no help. Furthermore, there wasn't enough air for wings to be of use beyond the atmosphere where the big rockets traveled. He could see no reason for wings, and said so.
"You're not looking far enough ahead," Dr. Gould said severely. "Put on your spaceman's helmet. Connect up and think. You're on Space Platform Number One and you want to come home to Terra. What are the wings for?"
Light dawned. Rick's chin dropped on his chest and stayed there. Finally he gasped, "You mean the wings are to turn the upper section into a glider in order to land it again?"
Dr. Gould put a hand on his shoulder and nodded gravely. "Ole Gee-Gee is pleased with you. You have demonstrated something between the ears besides strawberry Jello. You have just described the objective of Project Pegasus. We intend to shoot the beast into space and bring the top stage home again by drone control."
The scientist grew serious. "It's not an easy thing, young Brant. No one has yet succeeded in getting a big rocket down in one piece. If we can do it, we'll be one step through the biggest barrier to manned space flight.
"You will work on wiring in the drone control section. Just remember that every touch of your soldering iron is critical. Take no chances at all; everything must be perfect. Do your job and do it well, and someday you'll be able to say that you made the big horse's wings work when it really counted. Now come on, and I'll introduce you to Dick Earle and you can get started."
Dick Earle turned out to be a bigger and darker copy of Gee-Gee. He had the same crew cut and mustache, but his hair was jet black.
Rick also met Dr. Carleton Bond, a tall, slender man of advanced years who was a consultant on drone controls, and Frank Miller, a studious, rather curt young man who was an electronics design engineer.
He began to make some order out of the organization. Gee-Gee Gould was electronics chief for all three projects. Dick Earle was electronics chief for Pegasus, under Gould, and there were also electronics chiefs for Orion and Cetus. Similarly, the projects had air-frame departments, propulsion departments, instrumentation departments, and administrative departments.
Each project also had a technical director, who was a sort of co-ordinator, trouble shooter, and general expert. The technical directors reported to Dr. John Gordon, on loan from Spindrift, who had the title of Senior Project Engineer.
Later, Rick explained it to Scotty. "Each project has its own staff, but there's a top staff that is responsible for all projects. I'm making a little sense out of it, but people keep showing up that I can't fit into the organization."
"They're probably support people," Scotty explained. "Seems the base is divided into two groups; the scientific gang and the support gang. I'm in support, in the vehicle maintenance section. Lomac runs the whole support group. Besides transportation, there's the tracking and monitoring gang—that's what Big Mac and Pancho are in—the machine-shop gang, and all the housekeeping facilities like the fire department, the security force, housing and feeding, and so on."
The boys' roommates turned out to be a security officer named Hank Leeming and one of the janitors, an elderly man of Mexican descent named Maximilian Rodriguez.
On the second day of work Rick met another interesting character, although a nonhuman one, and got an additional duty imposed on him.
He was at work installing a tiny servomotor in the drone control unit when something landed on his head and gripped his hair firmly. Instinctively he started to swing at it, but Dr. Bond's voice stopped him in time.
"Easy, Rick! He won't hurt you."
Rick reached up carefully and his hands met fur. He lifted the little creature down and stared at it, his lips slowly parting in a grin. It was a tiny monkey no larger than a squirrel, with soft brown fur and tufted ears. The little animal pulled free, jumped onto Rick's shoulder and kissed him ecstatically, making happy chirrupy noises.
"What on earth is a monkey doing here?"
Dr. Bond smiled. "Prince Machiavelli is more than a monkey," he replied. "Actually, he is a true marmoset of the genusCallithrix. He is also a genuine spacemonk."
"A what?"
The elderly scientist smiled. "Spacemonk. The simian equivalent of spaceman. The Prince has been into space twice now. Fortunately, the nose section was parachuted down intact both times, so he survived. Other spacemonks have been less fortunate. He will be our surrogate for Project Pegasus."
Rick stared at the little creature with increased interest. The marmoset was to substitute, then, for human occupants of the big rocket. His life would depend on their ability to get the winged nose section down in one piece. He stroked the tiny spacemonk gently, and got a contented series of chirps in response.
Dick Earle walked in and smiled as the monkey snuggled down happily in Rick's cupped hands. "Looks as if you've made a friend, Rick. Good. In addition to your other duties you can take over as the monk's keeper. He won't be any trouble. Sometimes I think he has better manners than some of the staff." Earle turned and walked out again.
Rick stared after him. "What was that last crack about?"
Dr. Bond smiled. "Dick has his problems. I won't gossip, but you'll soon see what I mean."
The elderly consultant's prediction came true in short order. The next day, Rick ran headlong into an unwarranted and particularly nasty dressing down at the hands of Frank Miller. Rick, annoyed with himself for having done a rather poor job of connecting up the servomotor, was busily ripping it out when Miller came over to see what he was doing. Without waiting for an explanation, the design engineer launched into a tirade. Rick's face slowly reddened and his temper grew frayed. It was so completely unjust that he was on the verge of swinging at the engineer when Dick Earle walked in.
Earle asked crisply, "What's this all about?"
Miller turned on him. "You're supposed to be in charge here, but you let sloppy work like this go on! What good does it do for me to design circuits if—"
Earle cut him off. "Shut up, Frank. Rick, what's your story?"
Rick clenched his hands. "I installed this servo, and didn't do a clean job of it. It was pretty sloppy. So I pulled it out to do it over again. I won't settle for anything less than perfect work. But he came along and jumped on me without letting me explain what I was doing."
Earle nodded. "All right. Go ahead with your work. Frank, you are not this boy's supervisor. Let him alone."
Miller glared at the electronics chief, then turned on his heel and stalked out of the shop. Earle watched him go, his pleasant face sober. "I'm sorry, Rick. Frank is like that, and I don't know why. I suspect he has troubles of some sort and takes it out on us. Try to overlook it, because he's an extremely competent engineer. We'd have great trouble replacing him."
Rick nodded. "Yes, sir."
The work progressed smoothly. Rick finished the part he was working on and was assigned another. He met other members of the project, including Phil Sherman and Charlie Kassick who, like himself, were technicians at work on wiring and assembly. He met Cliff Damon, chief of the instrumentation section, who showed him the intricate devices used to track the big rockets and to record just about everything that went on inside them.
It was pleasant and exciting, and only the incident with Frank Miller marred the contentment Rick felt at being a part of Pegasus. Then, near the end of his first week on the job, Miller dropped in and watched Rick at work for a moment. The boy tensed, but said nothing beyond a civil good morning.
Miller cleared his throat. "Brant, I want to apologize."
Rick looked up in surprise.
"I'm known as a crank, and I guess I deserve the reputation. But just because I feel rotten doesn't mean I have to take it out on you. I'm sorry."
Rick looked at the engineer thoughtfully. Miller was apparently sincere. "That's all right," he said. "Why do you feel rotten, if you don't mind my asking?"
"Ulcers. The doctor says the only way to cure them is to get out of this business, and go into something with less stress and strain. But I can't. I've been a rocketeer ever since I graduated from college, and I can't leave. So if I snap at you, please forget it."
Rick nodded. "I'll play it that way if you say so."
"Thanks." Miller turned and walked out.
The design engineer was polite enough after that, and Rick discounted the few times when he appeared too curt. So, with pleasant working conditions all around, the work fell into an exciting routine. The days passed and the drone control began to shape up as a complete unit. Meanwhile, other sections of the big rocket were readied, and the first two stages, now completely assembled, were loaded on their special trucks and taken to the firing area.
In the next shed, Orion was almost ready. The rocket stages were trucked to the firing pad assigned to the project and the staff vanished from next door. They had moved their base of operation to the blockhouse and the pad. Time for the Orion shoot was only two days off.
Rick saw little of Scotty. His pal was at work in the vehicle maintenance shed, and making friends of his own. The two met only at night, usually at bedtime, because the entire base was working overtime.
The work was so absorbing that Rick actually forgot for long periods the reason for his presence on the base. To be sure, he heard much about the mysterious Earthman, but it was all a rehash of the earlier sabotage attempts, mixed with pretty wild speculation. Scotty reported that among the mechanics, machinists, and housekeeping staffs, the Earthman was regarded with considerable fear and superstition.
Then, with shattering impact, the Earthman returned from the realm of legend to stark reality!
Dick Earle handed Rick a series of requisition forms. "We're running out of parts. Take this to Warehouse Eight and get the requisitions filled. The clerk will lend you a hand truck to bring the stuff back."
Rick found the warehouse, handed the forms to a clerk, and waited at the counter for the supplies. The clerk moved from bin to bin, collecting the variety of electronic parts. The pile in front of Rick grew.
The clerk returned the last two sheets and scanned them. "All transistors. And not the cheap kind, either. Just a minute and I'll have them for you." He vanished behind the tiers of shelves. Rick waited.
The wait grew longer and the boy fidgeted. Couldn't the clerk find them? Rick hoped the base hadn't run out, because that would mean a delay on his project. Already he thought of it as "his," and he was impatient as any of the project staff to push the work to completion.
The clerk reappeared, a single carton and a sheet of paper in hand. The man's face was white and his eyes looked as though they were about to drop out. He grabbed the phone on the counter and dialed, missed because his hand was shaking so, and dialed again. This time he got the number.
"Security? Is this security? Get over here, quick! Warehouse Eight. Hurry! The Earthman has been here!"
Rick stared, popeyed. The Earthman! He asked quickly, "What happened?"
The clerk swallowed hard. Obviously he was scared stiff. "They were empty," he said. "All of them. Empty! Honest! And in one I found this." He handed Rick the scrap of paper he carried.
Rick smoothed it out on the counter and his pulse speeded. It was a good sketch, done in ink, of a knight in full armor. Crushed under one mailed foot was a rocket. The knight carried a shield, and emblazoned on it were two words.
Homo Terrestrialis.
The mark of the Earthman!
Hank Leeming, Rick's security officer roommate, and an older man he identified as Colonel Tom Preston, Chief of Security, pulled up at the door in a jeep and hurried inside.
Preston took over. "All right, Jimmy. What's this about the Earthman?"
The clerk silently handed him the slip of paper.
The Security Chief examined it. "His mark, all right. Where did you find it?"
The clerk was still shaky, and he had a hard time putting his discovery into words. Rick tried to help him out. "He found some cartons that were empty. Transistor cartons, I guess. This was in one of them."
Preston's eyes fixed on him. "Who are you?"
"My name is Brant, sir. I'm with Pegasus."
Preston's eyes acknowledged Rick's name, but he turned to the clerk. "Is that right, Jimmy? Transistors missing?"
Jimmy found his voice. "Yes, Colonel. At first I thought it was a mistake—a few empties put back on the shelf by accident. But they were all empty, sir. All of them! There isn't a transistor in the warehouse!"
Preston nodded. "Take over, Hank. Shake the place down. Get one of the boys with a kit and check for fingerprints on the stacks and empty cartons. Jimmy, come with me. We'll check your inventory with Pat O'Connor."
Pat O'Connor was the base supply officer. Preston and the clerk departed. Hank paused long enough to say, "Better take the stuff you have, Rick. Looks as if you'll have to wait for the transistors."
Obviously there wasn't anything else to be done. Rick found a hand truck, loaded on the supplies, and went back to his shed.
By dinnertime the base was one solid mass of rumor. Rick heard variously that the Earthman had been found, that he had stolen an entire rocket assembly, that the warehouse had been loaded with dynamite triggered to explode, that he had killed the clerk, that the clerk had seen him just before he flickered into invisibility, and so on.
He phoned Scotty and found that his pal was hearing equally wild rumors. The boys set a time and place to meet, just outside the main project building at five-thirty. Scotty was there when Rick arrived.
"John Gordon come out yet?" Rick asked.
Scotty shook his head. "Any news? I've got a million rumors more or less, but nothing solid."
Rick told him in detail of the incident at the warehouse, and concluded, "Beyond that I don't know a thing. But Gordon will probably know something if we can catch him."
"We'll wait. We can pretend it's the first time we've seen him here and talk for a few minutes about old times at Spindrift. That shouldn't make anyone suspicious."
Rick agreed. It would be natural enough, and if anyone came within earshot they could make the conversation sound harmless.
Scotty grinned. "How's your pal and special charge?" At least once a day he kidded Rick about becoming nursemaid to a monkey.
"Fine," Rick replied. "He asks for you every day. After all, he knows you're the only other ape on the base."
Scotty ignored the crack. "When do I get to see this beloved child of yours?"
"Come on over to the project any time. He'd like to meet you."
"I'll do it, first time I can get away from those doggone trucks. Seems like they break down every hour."
At that moment John Gordon came out of the project building. Rick, who was facing the door, pretended surprise. "Aren't you Dr. Gordon," he called.
The scientist turned and hesitated. "Yes. You're ... let's see ... you were at Spindrift for a while. I'm afraid I don't remember your names."
Rick introduced himself and Scotty, for the benefit of a few men who were passing by, en route to the mess hall.
"Ah, yes. I remember now. Going to eat? So am I. Come along and tell me where you're working now. Obviously you're employed on the base, but on what projects?"
They chatted idly as they walked slowly toward the mess hall. Then, when no one was in earshot, Rick said swiftly, "I was at the warehouse when the mark of the Earthman was found. Any developments we should know about?"
Gordon answered softly, "Yes. Inventory showed nearly a quarter of a million in transistors missing. Also, no one had called for transistors in nearly three weeks."
"Isn't that unusual?" Scotty asked.
"Not particularly. Each project has its own stock-room. Since we're a new base, the projects have been working from an initial supply."
"So the transistors may have been missing for some time?"
"They could have been missing since the last requisition, exactly nineteen days ago. But they probably were stolen during the Viking shoot."
"Is the warehouse guarded?"
"No. A clerk is on duty at all times when the warehouse is open. At night it's locked. There was no sign of tampering, and anyway, the locks are tamper-proof."
Scotty said warningly, "Company coming." Then, in a louder voice, he continued, "Of course we worked for Dr. Zircon."
"Very capable man, Zircon," Gordon said, taking Scotty's cue. "We could use him here. Any idea where he is now?"
"No, sir," Rick replied. "We haven't seen him since we left Spindrift."
At the door of the mess hall Gordon left them with a polite handshake, explaining that he had to eat with someone else by previous arrangement.
During dinner Rick thought over the events of the day. But not until the meal was ended and he and Scotty wandered on foot toward the edge of camp could he put his idea into words.
"This business today puts a new light on the Earthman, Scotty."
"I read you loud and clear. A quarter of a million bucks makes a little sabotage worth while, huh?"
Rick nodded. "We can't know, of course, but if you were a warehouse clerk and a big rocket went haywire, wouldn't you be out watching it?"
"I'd be out where the view was best. So would you," Scotty replied.
"Remember where we saw a transistor recently?" Rick asked.
Scotty reached in his pocket, brought out his sling, and unwrapped it. He picked up a stone, tested it for weight, then reconsidered and put the sling back. "I remember. Big Mac and Pancho. Mac said he must have stuck it in his pocket absent-mindedly while repairing his equipment."
"That's what he said," Rick agreed. "Only transistors aren't like radio tubes. They don't need replacing often."
"Meaning?"
"He might have been telling the truth or he might not."
Scotty tossed the stone away. "How much space would that many transistors take up?"
"Hard to say. We could find out, I suppose. But transistors are small, and they don't weigh much. Besides, some of the types used here are fantastically expensive. A couple of hundred dollars might pay for a transistor the size of a kidney bean."
Scotty whistled. "They must be made of diamonds! Anyway, a quarter of a million is a lot of money, and even at two hundred bucks each the transistors would make quite a bundle. The Earthman would have to hide them, and then get them off the base. And I'll tell you one thing: If Big Mac stole them, he didn't take them off the base in his own car."
"How do you know?" Rick challenged.
"He's got a Porsche. There's about enough room in the luggage compartment for a spare handkerchief."
"I'll buy it." Another idea hit him. "But he has some other transportation, hasn't he? How about the radar unit he and Pancho run?"
Scotty snapped his fingers. "Now you're cooking! It's a panel truck, loaded with equipment, and they pull the radar antenna behind it on a trailer. There would be plenty of room in the truck. Only he doesn't take it into town, remember?"
"Would he need to? He could drop the transistors somewhere to be picked up later."
"Careless Mesa."
"What?"
"That's his station. Come on. Let's look at a map of the area." Scotty turned and led the way to their barracks.
One thing about the robbery was a major puzzle to Rick. He could see that a rocket shoot might provide the opportunity to commit the theft, and he could see how use of a radar van might get the stolen goods off the base. But the thief had carefully emptied cartons, leaving the cartons as camouflage. That took more time than any thief would have. He considered various ways in which it might have been done and rejected them all.
Tacked up in the entryway of their barracks was a large-scale map. Scarlet Lake was marked with crayon. The boys studied the area, looking for Careless Mesa. Finally Scotty found it, almost due north of the base. "About twenty miles. Only one road to the mesa, but two roads lead away from it. Let's see where they go."
The first road from Careless Mesa ended at a point in the mountains marked "Dry Spring." The second road led to the town marked "Steamboat," where the road forked again. One branch eventually joined other roads in Pahrump Valley, the other led to Death Valley.
The boys looked at each other triumphantly. Rick said, "So you can get from Careless Mesa to state highways without returning to the base."
Scotty scratched his chin. "Any idea what's at Careless Mesa?"
"Not the slightest."
"Neither do I. Maybe we'd better have a look."
That was fine with Rick. "When?"
"How about tomorrow?"
"I'll have to check. Suppose I wander over to the project? If Dick Earle is there, I can sound him out."
"Okay, and I'll check with my people."
The boys parted, and Rick walked to the Pegasus shed. Dick Earle and Dr. Bond were in the cubicle where the project paper work was done. The marmoset was with them, perched on top of the file safe. As Rick entered, the little spacemonk jumped to his shoulder and caressed his cheek.
"Come in, Rick," Dr. Bond said. "We're just having a gloom session."
"Gloom? What about?" Rick petted the marmoset, then put him back on his file-safe perch. "Is something wrong?"
"Transistors," Dick Earle stated flatly. "No transistors left on the base. That means we come to a grinding halt until we get supplies."
"The whole project?" Rick asked in astonishment. He hadn't realized a few parts would mean so much.
"Not all of it. Just our part. The air frame and propulsion people can keep on, because they don't use the gadgets. But we'll be tied up for a few days until a supply can get here."
Dr. Bond added, "An order has been placed, Rick. By telephone. But the supplier can't possibly make delivery until after the Orion shoot."
Dick Earle nodded. "Correct. So you might as well plan to loaf for a day or so, Rick."
The trip to Careless Mesa would be no problem now, Rick thought. He wouldn't even need to ask permission.
"Strange that anyone would steal a whole supply of transistors," he commented.
Dick Earle shook his head. "Not particularly. The transistor is still a critical item in electronics and production isn't up to demand, especially for special designs. That means the stolen transistors can be sold fairly easily, once the proper channels to get them into the market are found."
"What kind of channels?" Rick asked.
Earle shrugged. "Anything to hide the fact that the transistors are stolen stock. The Earthman could make a deal with some jobber who handles electronic materials, and feed the transistors into regular trade channels through the jobber."
"But aren't they numbered, or trade-marked, or something like that?"
"Numbers and trade-marks can be changed," Dr. Bond reminded him.
As Rick walked back to his barracks he pondered over the meaning of the day's development. For one thing, theft of the transistors put a new light on the Earthman's activities. It added a profit motive to whatever else motivated the mysterious saboteur. Or did it?
How Big Mac and Pancho fitted into all this remained to be determined. Rick could easily imagine that the two would take considerable risk for big profits, but it was harder to imagine them acting from any other motive. Somehow, he just couldn't believe that money was the underlying reason for the Earthman's actions. Sabotaging research rockets just to provide a diversion that would allow a theft did not make sense.
The Earthman's activities had become more than just a challenging puzzle, too. Rick's work on Pegasus had become important in its own right. He was excited at being a part of something so dramatic, and with such far-reaching consequences for the whole future of space travel and high-altitude research. He had become a part of Pegasus. Perhaps he wasn't an important part, but he was making at least a small contribution to the project's success. That made ithisproject, and the Earthman was interfering with it.
Somehow, he and Scotty had to find the Earthman—for personal reasons now, as well as official ones!
The boys climbed in the jeep early the following morning.
Scotty shifted into gear and drove through the base. "The time is now zero minus twenty-two hours."
Rick looked at him. "What does that mean?"
"Firing time for Orion is tomorrow morning, twenty-two hours from now. That must be the reason for the balloon that we just saw go up. The weather group is starting to watch winds and visibility. Something else I picked up at maintenance, too. There's going to be a dry run today."
"Spell it out," Rick requested.
"As I get it, all hands go through the same procedures they'll follow tomorrow morning. The Orion group will fire a small weather rocket to check the circuits, and to allow the tracking and monitoring group to check their equipment. And do you know what that means?"
Rick saw it at once. "Mac and Pancho will be going to Careless Mesa!"
"Yep. But the dry run doesn't start until ten this morning. That gives us plenty of time to get there, look around, and shove off before Mac and Pancho show up."
"Suppose they get there early?" Rick asked.
"They probably will. We won't hang around, though. According to the control board in the vehicle shop their truck isn't supposed to be ready until eight, which is an hour and a half from now."
Rick thought that was cutting it fine, but he made no further comment.
Both boys had checked the map again, and knew the route to follow. Scotty drove through the base and onto the access road that led to the firing areas. In a short time they had a clear view of Orion waiting on its pad, project personnel swarming over the gantry crane as they performed a variety of last-day chores. The sight filled Rick with excitement. To-morrow he would see the big rocket go up.
"Pretty," Scotty said.
Rick nodded. Orion was a beautiful sight. Its lines were clean, and its paint job was colorful, mixing white with high-visibility colors to allow greater ease of visual tracking.
"Blockhouse ahead," Scotty pointed out.
It was the first time either of them had seen the blockhouse, the control point from which the rockets were fired. It was within a mile of the concrete firing pads, close enough to be in great danger from wild rockets that had gone out of control. For that reason it was made of heavily reinforced concrete, several feet thick. It could take a direct hit from even the biggest rockets without harm to the personnel inside.
Then the firing area was passed and the jeep sped along next to the miles-long black, oiled path of the airstrip. Soon the strip was behind, then the level floor of the dry lake bed became rough terrain and the jeep began to climb toward the foothills.
"Isn't there a guard post this way?" Rick asked.
"Should be."
There was, a few miles beyond, as the jeep mounted the foothills and went through a pass. The guard inspected their badges, then waved them on. They were outside of the base area now.
The dirt road led them across a valley and up a gradual slope to another pass through the mountains. This time, as they emerged, Rick pointed to a flat-topped mountain directly ahead. "That's a mesa," he declared. "Suppose it's the right one?"
Scotty squinted against the glare. "Probably. I don't see any others on the horizon."
"What are we going to do when we get there?" Rick asked.
Scotty waved a hand. "Look, and hope there's something to see."
"Okay. Let it go. We'll wait and see." Rick fell silent, watching the desert. It was odd, he thought, that most people thought of deserts in terms of sand. It was a fact that some deserts were sandy, but this one was composed of hard-packed earth and stones in which plants struggled for survival. It was more like smooth clay. Then, as the desert rose from smooth plain to mountains, the ground became simply broken rock, sparsely dotted with creosote bush and cholla.
Once or twice he turned and looked back at the road over which they had come. The jeep left a trail of dust behind it, but he could see no dust from any other vehicle. Apparently they were well ahead of Big Mac and Pancho. He hoped they would stay ahead.
"If Mac and Pancho do catch up," he said thoughtfully, "we can always say we just came out for the ride, to see a little of the country."
Scotty gave him a sideways glance. "Think they'd buy it?"
"Could be. They have no reason to suspect us. We're just a couple of kids who work on the base."
The road was steep now, and Scotty shifted into second to take some of the strain off the engine.
Careless Mesa loomed ahead. Rick wondered if the road led all the way to the top. Apparently it did, because the trail twisted and turned, climbing constantly. He closed his eyes and visualized the map. Somewhere up there the road split.
Suddenly Scotty pointed. "Look!"
In a shady spot just off the road two sidewinders were coiled on a rock, beady eyes watching the jeep's passage. The snakes were the color of mottled sand, the "horns" on their diamond-shaped heads clearly identifiable. Their tails were a blur, and he knew they were rattling a warning, but the distinctive buzz couldn't be heard above the jeep's engine noise.
Rick restrained a shudder. Although he had no particular fear of snakes, he had an inborn dislike of the creatures. He had read that the sidewinder, or "horned" rattlesnake, was common in the Western deserts.
Then the jeep rounded a turn with a sheer drop of several hundred feet on Rick's side, and the sidewinders were lost to view. Rick looked down at the steep slope and said, "Nice place to meet a car coming down."
"Let's not meet one," Scotty replied. He had to drop back into first gear now, because the climb was very steep.
The road cut through a notch and emerged onto a relatively level area. Rick tried to get his bearings. The road had twisted and turned so much he had lost his sense of direction. The sun's position helped him to get oriented again, and he realized they were high on the side of Careless Mesa, overlooking the road across which they had just traveled.
"Clearing ahead," Scotty said. "Bet we've reached the station."
He was right. The road led across a wide shelf, perhaps fifty feet below the top of the mesa. On the far side of the shelf the road dipped again. Scotty let the jeep roll to the edge of the dip and they looked down the roadway which twisted and turned and finally forked a thousand feet below.
Scotty put the jeep in reverse and backed to the center of the shelf. It was about two hundred feet wide, the road hugging the inner cliff. Toward the edge of the shelf the ground was disturbed by vehicle tracks.
"Stop here," Rick said.
Scotty killed the engine, and pointed to a pile of cans near the remains of a fire. "This must be where Mac and Pancho set up their radar gear."
Rick looked around him appreciatively. In the direction of Scarlet Lake there was a clear view for miles. Only the low ridges of intervening hills prevented them from seeing the base itself. A radar outfit could track the rockets from here with no interference at all, once the rocket had risen above the range of low hills.
Scotty indicated the scenery with a wave of his hand. "Plenty to see. But twenty tons of transistors could be in plain sight and we'd never know it. How would you hide stolen goods, if you had to do it?"
Rick turned and surveyed the base of the cliff that led to the top of the mesa. "I'd probably hunt for a space between two big rocks, pack it in, and load rocks on top."
"And that ain't stuff and nonsense," Scotty agreed. "Come on. Let's start moving boulders."
Rick shook his head as his eyes encompassed the more than a hundred yards of strewn rocks at the cliff's bottom. "Shall we move them a ton at a time?"
Scotty grinned helplessly. "At that rate we'd be here six months." He kicked an empty beer can. "Maybe we'd better look in the cans instead."
As though by magic the can flew into the air, flashing in the sunlight. At the same instant they heard the spiteful crack of a rifle.
Scotty reacted instantly, and Rick was only a fraction of a second behind. They dashed across the road and dove for cover in the rocks behind the jeep.
The rifle cracked again. A slug whined into space a few feet from their noses, leaving a silvery streak of lead on a rock.
The boys moved again, closer into the face of the cliff, and took shelter under a slight overhang.
"Now what?" Rick asked.
Scotty surveyed the situation, estimated the line of fire from the lead smear on the rock, then shook his head.
"We can't get in the jeep and make a run for it, because we'd be right in the line of fire. He's on top of the mesa, whoever he is. He can't reach us here, but he can reach us if we move, or if he moves."
The rifle punctuated Scotty's estimate of the situation. This time the slug slapped rock close enough to spatter sandstone chips in their faces.
"We can't stay here," Scotty said grimly. "I'm going to see what I can do."
"How?" Rick demanded.
Scotty was busily picking up stone fragments, choosing them by weight and shape. "I can move along the face of the cliff, staying under cover. At least I think I can. If I reach the place where the road drops, I can get up to the top. With luck, I won't be seen. Besides, you can distract him."
"How?"
"I don't know. Put the Brant brain to work and figure out something." Scotty unrolled his sling, slipped the loop over his index finger, and gave Rick a tight grin. "Keep the boy busy, chum. Here I go."
Scotty moved rapidly but silently, across the bottom of the cliff, taking advantage of every overhanging rock. When Scotty was perhaps ten yards away, Rick moved into action. He picked up a rock, hefted it, then threw it into the pile of cans. They scattered noisily, bringing a rifle shot in reply.
Rick thought swiftly, then peeled off his shirt and wrapped it in a good-sized rock. He gauged the distance and heaved it in the direction opposite the one Scotty had taken, aiming for a niche under an overhang six yards away. He hoped the motion would be mistaken for one of them. Evidently he succeeded, because a rifle slug chipped rock a foot away from the shirt as it rolled under the overhang.
Raising his head cautiously, he saw a rock perched precariously on the steep slopes. Evidently it had come to rest there, or the rains had washed away much of its support. He found a rock to throw, sighted with care, and tossed it underhand. It struck directly under the balanced rock and dug away enough dirt to upset its equilibrium. The rock tumbled down, bringing a tiny landslide of other rocks and dirt with it. There was no response from the rifle this time.
Rick turned to see how Scotty was doing, but his pal was out of sight, behind some boulder along the way. Now what? His bag of tricks was almost exhausted.
He looked outward, across the road. A few yards to the right of the campfire and cache of cans was a rock pile. It was big enough to shield him, if he could make it. He took a deep breath. If he dodged and twisted fast enough, the rifleman probably couldn't hit him, and he would certainly have the man's full attention. That would give Scotty a better chance.
He chose a rock, hefted it, and got up into a sprinting position. He made sure of his footing, then simultaneously tossed the rock sideways to attract the rifleman's eye, and charged out of the niche.
Ten feet and he jumped sideways, took two forward leaps, and went sideways again. The rifle barked and dirt spurted where he had just been. But by then Rick was within reach of the rock pile, and he went over it in a headlong dive, rolling like a tumbler as he landed. Quickly he flattened out, as close to the rocks as he could get. A bullet whined off the top of the pile, and then there was silence.
Rick's heart pounded and his breath came in gasps. He had made it! But how about Scotty? He risked a push-up that brought his head to the level of the upper rocks in time to see Scotty fire his first sling stone. His pal had reached a position just below the top of the mesa, where his stones would clear the top without exposing him. As Rick watched, Scotty put another stone in the pouch and let fly. The stone smashed into rock on top of the mesa. A third stone, and Rick suddenly caught a glimpse of motion on the mesa top, directly above him. The rifleman was changing position! Evidently Scotty's stones were coming too close!
"Watch it!" he yelled. "Watch out, Scotty! He's moving!"
Three closely spaced shots sent Scotty to the ground as slugs whined off the mesa rim directly above him. Then there was silence. Rick heard, as though from far off, the clatter of rock. He waited. Scotty was waiting, too.