document: Saboteur of Space
   
  
   By ROBERT ABERNATHY
   
   
   Fresh power was coming to Earth, energy which would bring life to a dying planet. Only two men stood in its way, one a cowardly rat, the other a murderous martyr; both pawns in a cosmic game where death moved his chessmen of fate—and even the winner would lose.
   
   [Transcriber's Note: This etext was produced from Planet Stories Spring 1944. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.]
   
   
   
   Ryd Randl stood, slouching a little, in the darkened footway, and watched the sky over Dynamopolis come alive with searchlights. The shuttered glow of Burshis' Stumble Inn was only a few yards off to his right, but even that lodestone failed before the novel interest of a ship about to ground in the one-time Port of Ten Thousand Ships.
   
   Now he made out the flicker of the braking drive a mile or so overhead, and presently soft motor thunder came down to blanket the almost lightless city with sound. A beam swayed through the throbbing darkness, caught the descending ship and held it, a small gleaming minnow slipping through the dark heavens. A faint glow rose from Pi Mesa, where the spaceport lay above the city, as a runway lighted up—draining the last reserves of the city's stored power, but draining them gladly now that, in those autumn days of the historic year 819, relief was in sight.
   
   Ryd shrugged limply; the play was meaningless to him. He turned to shuffle down the inviting ramp into the glowing interior of Burshis' dive.
   
   The place was crowded with men and smoke. Perhaps half the former were asleep, on tables or on the floor; but for the few places like Burshis' which were still open under the power shortage, many would have frozen, these days, in the chilly nights at fourteen thousand feet. For Dynamopolis sprawled atop the world, now as in the old days when it had been built to be the power center of North America.
   
   The rocket blasts crescendoed and died up on Pi Mesa as Ryd wedged himself with difficulty into the group along the bar. If anyone recognized him, they showed it only by looking fixedly at something else. Only Burshis Yuns kept his static smile and nodded with surprising friendliness at Ryd's pinched, old-young face.
   
   Ryd was startled by the nod. Burshis finished serving another customer and maneuvered down the stained chrome-and-synthyl bar. Ryd was heartened.
   
   "Say, Burshis," he started nervously, as the bulky man halted with his back to him. But Burshis turned, still smiling, shaking his head so that his jowls quivered.
   
   "No loans," he said flatly. "But just one on the house, Ryd."
   
   The drink almost spilled itself in Ryd's hand. Clutching it convulsively, he made his eyes narrow and said suspiciously, "What you setting 'em up for, Burshis? It's the first time since—"
   
   Burshis' smile stayed put. He said affably, "Didn't you hear that ship that just came down on the Mesa? That was the ship from Mars—the escort they were sending with the power cylinder. The power's coming in again." He turned to greet a coin-tapping newcomer, added over his shoulder: "You know what that means, Ryd. Some life around here again. Jobs for all the bums in this town—even for you."
   
   He left Ryd frowning, thinking fuzzily. A warming gulp seemed to clear his head. Jobs. So they thought they could put that over on him again, huh? Well, he'd show them. He was smart; he was a damn good helio man—no, that had been ten years ago. But now he was out of the habit of working, anyway. No job for Ryd Randl. They gave him one once and then took it away. He drank still more deeply.
   
   The man on Ryd's immediate right leaned toward him. He laid a hand on his arm, gripping it hard, and said quietly: "So you're Ryd Randl."
   
   
  
   
   Ryd had a bad moment before he saw that the face wasn't that of any plain-clothes man he knew. For that matter, it didn't belong to anybody he had ever known—an odd, big-boned face, strikingly ugly, with a beak-nose that was yet not too large for the hard jaw or too bleak for the thin mouth below it. An expensive transparent hat slanted over the face, and from its iridescent shadows gleamed eyes that were alert and almost frighteningly black. Ryd noted that the man wore a dark-gray cellotex of a sort rarely seen in joints like Burshis'.
   
   "Suppose we step outside, Ryd. I'd like to talk to you."
   
   "What's the idea?" demanded Ryd, his small store of natural courage floated to the top by alcohol.
   
   The other seemed to realize that he was getting ahead of himself. He leaned back slightly, drew a deep breath, and said slowly and distinctly. "Would you care to make some money, my friend?"
   
   " Huh? Why, yeh—I guess so—"
   
   "Then come with me." The hand still on his arm was insistent. In his daze, Ryd let himself be drawn away from the bar into the sluggish crowd; then he suddenly remembered his unfinished drink, and made frantic gestures. Deliberately misunderstanding, the tall stranger fumbled briefly, tossed a coin on the counter-top, and hustled Ryd out, past the blue-and-gold-lit meloderge that was softly pouring out its endlessly changing music, through the swinging doors into the dark.
   
   Outside, between lightless buildings, the still cold closed in on them. They kept walking—so fast that Ryd began to lose his breath, long-accustomed though his lungs were to the high, thin air.
   
   "So you're Ryd Randl," repeated the stranger after a moment's silence.
  "I might have known you. But I'd almost given up finding you tonight."
   
   Ryd tried feebly to wrench free, stumbled. "Look," he gasped. "If you're a cop, say so!"
   
   The other laughed shortly. "No. I'm just a man about to offer you a chance. For a come-back, Ryd—a chance to live again.... My name—you can call me Mury."
   
   Ryd was voiceless. Something seemed increasingly ominous about the tall, spare man at his side. He wished himself back in Burshis' with his first free drink in a month. The thought of it brought tears to his eyes.
   
   "How long have you been out of a job, Ryd?"
   
   "Nine ... ten years. Say, what's it to you?"
   
   "And why, Ryd?"
   
   "Why...? Look, mister, I was a helio operator." He hunched his narrow shoulders and spread his hands in an habitual gesture of defeat. "Damn good one, too—I was a foreman ten years ago. But I don't have the physique for Mars—I might just have made it then , but I thought the plant was going to open again and—"
   
   And that was it. The almost airless Martian sky, with its burning actinic rays, is so favorable for the use of the helio-dynamic engine. And after the middle of the eighth century, robot labor gave Mars its full economic independence—and domination. For power is—power; and there is the Restriction Act to keep men on Earth even if more than two in ten could live healthily on the outer world.
   
   "Ten years ago," Mury nodded as if satisfied. "That must have been the Power Company of North America—the main plant by Dynamopolis itself, that shut down in December, 809. They were the last to close down outside the military bases in the Kun Lun."
   
   Ryd was pacing beside him now. He felt a queer upsurge of confidence in this strange man; for too long he had met no sympathy and all too few men who talked his language. He burst out: "They wouldn't take me, damn them! Said my record wasn't good enough for them. That is, I didn't have a drag with any of the Poligerents."
   
   "I know all about your record," said Mury softly.
   
   Ryd's suspicions came back abruptly, and he reverted to his old kicked-dog manner. "How do you know? And what's it to you?"
   
   
  
   
   All at once, Mury came to a stop, and swung around to face him squarely, hard eyes compelling. They were on an overpass, not far from where the vast, almost wholly deserted offices of the Triplanet Freighting Company sprawled over a square mile of city. A half-smile twisted Mury's thin lips.
   
   "Don't misunderstand me, Ryd—you mean nothing at all to me as an individual. But you're one of a vast mass of men for whom I am working—the billions caught in the net of a corrupt government and sold as an economic prey to the ruthless masters of Mars. This, after they've borne all the hardships of a year of embargo, have offered their hands willingly to the rebuilding of decadent Earth, only to be refused by the weak leaders who can neither defy the enemy nor capitulate frankly to him."
   
   Ryd was dazed. His mind had never been constructed to cope with such ideas and the past few years had not improved its capabilities. "Are you talking about the power cylinder?" he demanded blurrily.
   
   Mury cast a glance toward the Milky Way as if to descry the Martian cargo projectile somewhere up among its countless lights. He said simply, "Yes."
   
   "I don't get it," mumbled Ryd, frowning. He found words that he had heard somewhere a day or so before, in some bar or flophouse: "The power cylinder is going to be the salvation of Earth. It's a shot in the arm—no, right in the heart of Earth industry, here in Dynamopolis. It will turn the wheels and light the cities and—"
   
   "To hell with that!" snapped Mury, suddenly savage. His hands came up slightly, the fingers flexing; then dropped back to his sides. "Don't you know you're repeating damnable lies?"
   
   Ryd could only stare, cringing and bewildered. Mury went on with a passion shocking after his smooth calm:
   
   "The power shell is aid, yes—but with what a price! It's the thirty pieces of silver for which the venal fools who rule our nations have sold the whole planet to Mars. Because they lack the courage and vision to retool Earth's plants and factories for the inescapable conflict, they're selling us out—making Earth, the first home of man, a colony of the Red Planet. Do you know what Earth is to the great Martian land-owners? Do you? " He paused out of breath; then finished venomously, "Earth is a great pool of labor ready to be tapped, cheaper than robots—cheap as slaves !"
   
   "What about it?" gulped Ryd, drawing away from the fanatic. "What you want me to do about it?"
   
   Mury took a deep breath and straightened his shoulders. His face was once more bleakly impassive; only the mouth was an ugly line. "We're going to do something about it, you and I. Tonight. Now."
   
   Ryd was nearly sober. And wholly terrified. He got out chokingly,
  "What's that mean?"
   
   "The power shell—isn't coming in as planned."
   
   "You can't do that."
   
   " We can," said Mury with a heavy accent on the first word. "And there are fifty thousand credits in it for you, Ryd. Are you with us?"
   
   Suspicion was chill reality now in Ryd's mind. And he knew one thing certainly—if he refused now to accompany Mury, he would be killed, by this man or another of his kind. For the secret power known only as We never took chances. Whispered-of, terrible, and world-embracing, desperate upshot of the times in its principles of dynamitism, war, and panclasm—that was We .
   
   The question hung in the air for a long moment. Then Ryd, with an effort, said, "Sure." A moment later it struck him that the monosyllabic assent was suspicious; he added quickly, "I got nothing to lose, see?" It was, he realized, the cold truth.
   
   "You won't lose," said Mury. He seemed to relax. But the menace with which he had clothed himself clung, as he turned back on the way they had come.
   
   Ryd followed dog-like, his feet in their worn shoes moving without his volition. He was frightened. Out of his very fright came a longing to placate Mury, assure him that he, Ryd, was on the same side whatever happened....
   
   After some steps he stole a sidelong glance at his tall companion, and whined, "Where ... where we going now?"
   
   Mury paused in his long stride, removed a hand from a pocket of the gray topcoat that wrapped him as in somber thoughts. Wordlessly, he pointed as Ryd had known he would—toward where a pale man-made dawn seemed breaking over Pi Mesa.
   
   
  
   II
   
   "One blow for freedom!" said Mury with caught breath. His voice fell upon air scarcely stilled since the sodden thump of the blow that had killed the guard.
   
   The body lay between them, face down on the graveled way in the inky moon-shadow. On one side Pi Mesa stretched away two hundred yards to drop sharply into the night; on the other was the unlighted mass of the long, continuous, low buildings that housed now unused fuel pumps and servicing equipment. Looking down at the dead huddle at his feet, a little stunned by the reality of this, Ryd knew that he was in it now. He was caught in the machinery.
   
   Mury hefted the length of steel in his hand once more, as if testing the weight that had crushed a man's skull so easily. Then, with a short wrist-flip, he sent it flying into the dried weeds which had over-grown the aero field on the mesa's rim during the summer months after State order had grounded all fliers in America.
   
   "All right, Ryd," he said coolly. "Trade clothes with this fellow. I've brought you this far—you're taking me the rest of the way."
   
   The rest of the way.
   
   Ryd was still panting, and his side was paining from the strenuous exertion of the long climb up the side of the mountain, far from the guarded highway. His fingers, numbed by the cold of the high, thin air, shook as he knelt and fumbled with the zippers of the dead guard's uniform. The belted gun, however, was heavy and oddly comforting as he clumsily buckled it about his hips. He knew enough of weapons to recognize this as, not the usual paralyzer, but a flame pistol, powerful and deadly. He let his hand linger on its butt; then strong fingers tightened on his bony wrist, and he looked up with a start into the sardonic black eyes of the Panclast.
   
   "No use now for firearms," said Mury. "All the guns we could carry wouldn't help us if we were caught out there. That gun is just a stage property for the little play we're going to give in about three minutes—when you'll act a guardsman escorting me, a Poligerent of Dynamopolis, aboard the towship Shahrazad ."
   
   For a moment Ryd felt relief—he had hazily imagined that Mury's hatred of Mars and all things Martian might have led him to try to sabotage the Martian warship which lay somewhere on the runways beyond the long, low buildings, and which would be closely guarded. But the towship would also be guarded ... he shivered in the cold, dry night air.
   
   Mury had melted into the shadow a few yards away. There was a light scraping, then a green flame sputtered, briefly lighting up his hands and face, and narrowing at once to a thin, singing needle of light. He had turned a pocket electron torch against the lock-mechanism of a small, disused metal door.
   
   
  
   
   Ryd watched in painful suspense. There was no sound in his ears save for the hard, dry shrilling of the ray as it bit into the steel. It seemed to be crying: run, run —but he remembered the power that knew how to punish better than the law, and stood still, shivering.
   
   The lock gave way and the door slipped aside. A light went on inside, and Ryd's heart stopped, backfired, and started again, raggedly. The same automatic mechanism that had turned the lights on had started the air-fresher, which picked up speed with a soft whine, sweeping out the long-stale atmosphere. Mury motioned to Ryd to follow him in.
   
   
  
   
   It was still musty in the narrow passage, between the closely-pressing walls, beneath the great tubes and cable sheathings that fluted the ceiling overhead. A stairway spiraled up on the right to the control cupola somewhere overhead; even in the airtight gallery a thin film of dust lay on every step. Up there were the meters and switches of the disused terminal facilities of the spaceport; beyond the metal door marked CAUTION, just beyond the stairwell, lay the long runway down which the ships of space had glided to be serviced, refueled, and launched into the sky once more by now dormant machines.
   
   "Wait," said Mury succinctly; he vanished up the spiral stair, his long legs taking two steps at a time. After an aching minute's silence, he was back. All was clear as seen from the turret-windows overhead.
   
   They emerged in shadow, hugging the wall. Almost a quarter of a mile to the right the megalith of the Communications Tower, crowned with many lights where the signal-men sat godlike in its summit. Its floodlights shed a vast oval of light out over the mesa, where the mile-long runways—no longer polished mirror-like as in the days of Dynamopolis' glory—stretched away into the darkness of the table land. A handful of odd ships—mere remnant of the hundreds that Pi Mesa port had berthed—huddled under the solenoid wickets, as if driven together by the chill of the thin, knife-like wind that blew across the mesa.
   
   As the two paced slowly across the runways, Ryd had a sense of protective isolation in the vast impersonality of the spaceport. Surely, in this Titanic desolation of metal slabs and flat-roofed buildings, dominated by the one great tower, total insignificance must mean safety for them.
   
   And indeed no guard challenged them. There were armed men watching for all intruders out on the desert beyond the runways, but once inside, Ryd's borrowed blue seemed to serve as passport enough. Nonetheless, the passport's knees were shaking when they stood at last, inconspicuous still, at the shadowed base of the Communications Tower.
   
   Not far off, a half-dozen dignitaries, huddled close together in the midst of these Cyclopean man-made things that dwarfed their policies, their principles and ambitions, stood talking rather nervously with two officers, aristocratically gaudy in the scarlet of the Martian Fleet. Blue-clad guardsmen of Earth watched from a distance—watched boredly enough.
   
   And out on the steel-stripped tarmac, under the solenoid of Number Two Runway, lay a towship, backed like a stegosaur with its massive magnets—the Shahrazad , panting like a dragon amid rolling clouds of steam. She was plainly ready to go into space. The bottom dropped out of Ryd's stomach before he realized that a warning at least must be sounded before the ship could lift. But that might come any moment now.
   
   "Relax," said Mury in a low voice. "Nothing's gone wrong. We'll be aboard the Shahrazad when she lifts." For a moment his black eyes shifted, hardening, toward Runway Four. The Martian warship lay there beyond the solenoid, a spiteful hundred-foot swordfish of steel, with blind gunvalves, row on row, along its sleek sides and turret-blisters. It had not yet been tugged onto the turntable; it could not be leaving again very soon, though Earth weight was undoubtedly incommoding its crew. About it a few figures stood that were stiffly erect and immobile, as tall as tall men. From head to toe they were scarlet.
   
   "Robots!" gasped Ryd, clutching his companion's arm convulsively.
  "Martian soldier robots!"
   
   "They're unarmed, harmless. They aren't your police with built-in weapons. Only the humans are dangerous. But we've got to move. For God's sake, take it easy."
   
   Ryd licked dry lips. "Are we going—out into space?"
   
   "Where else?" said Mury.
   
   
  
   
   The official-looking individual in the expensive topcoat and sport hat had reached the starboard airlock of the towship before anyone thought to question his authorization, escorted as he was by a blue-uniformed guardsman. When another sentry, pacing between runways a hundred yards from the squat space vessel, paused to wonder, it was—as it came about—just a little too late.
   
   The guard turned and swung briskly off to intercept the oddly-behaving pair, hand crowding the butt of his pistol, for he was growing uneasy. His alarm mounted rapidly, till he nearly sprained an ankle in sprinting across the last of the two intervening runways, between the solenoid wickets. Those metal arches, crowding one on the other in perspective, formed a tunnel that effectively shielded the Shahrazad's airlocks from more distant view; the gang of notables attracted by the occasion was already being shepherded back to safety by the Communications guards, whose attention was thus well taken up.
   
   The slight man in guardsman's blue glanced over his shoulder and vanished abruptly into the circular lock. His companion wheeled on the topmost step, looking down with some irritation on his unhandsome face, but with no apparent doubt of his command of the situation.
   
   "Yes?" he inquired frostily.
   
   "What goes on here?" snapped the guard, frowning at the tall figure silhouetted against the glow in the airlock. "The crew's signaled all aboard and the ship lifts in two minutes. You ought to be—"
   
   "I am Semul Mury, Poligerent for the City of Dynamopolis," interrupted the tall man with asperity. "The City is naturally interested in the delivery of the power which will revivify our industries." He paused, sighed, shifting his weight to the next lower step of the gangway. "I suppose you'll want to re-check my credentials?"
   
   The guard was somewhat confused; a Poligerent, in ninth-century bureaucracy, was a force to be reckoned with. But he contrived to nod with an appearance of brusqueness.
   
   Fully expecting official papers, signed and garnished with all the pompous seals of a chartered metropolis, the guard was dazed to receive instead a terrific left-handed foul to the pit of the stomach, and as he reeled dizzily, retching and clawing for his gun, to find that gun no longer holstered but in the hand of the self-styled Poligerent, pointing at its licensed owner.
   
   "I think," Mury said quietly, flexing his left wrist with care the while his right held the gun steady, "that you'd better come aboard with us."
   
   The guard was not more cowardly than the run of politically-appointed civic guardsmen. But a flame gun kills more frightfully than the ancient electric chair. He complied, grasping the railing with both hands as he stumbled before Mury up the gangway—for he was still very sick indeed, wholly apart from his bewilderment, which was enormous.
   
   Above, Ryd Randl waited in the lock, flattened against the curved wall, white and jittering. The inner door was shut, an impenetrable countersunk mirror of metal.
   
   "Cover him, Ryd," ordered Mury flatly. In obedience Ryd lugged out the heavy flame pistol and pointed it; his finger was dangerously tremulous on the firing lever. He moistened his lips to voice his fears; but Mury, pocketing the other gun, threw the three-way switch on the side panel, the switch that should have controlled the inner lock.
   
   Nothing happened.
   
   "Oh, God. We're caught. We're trapped!" The outer gangway had slid up, the lock wheezed shut, forming an impenetrable crypt of niosteel.
   
   
  
   
   Mury smiled with supernal calm. "We won't be here long," he said. Then, to quiet Ryd's fears, he went on: "The central control panel and the three local switches inside, between, and outside the locks are on the circuit in that order. Unless the locks were closed from the switch just beyond the inner lock, that lock will open when the central control panel is cut out in preparation for lifting."
   
   Almost as he paused and drew breath, a light sprang out over the switch he had closed and the inner lock swung silently free of its gaskets. Ryd felt a trembling relief; but Mury's voice lashed out like a whip as he slipped cat-like into the passage.
   
   "Keep him covered. Back out of the lock."
   
   Ryd backed—the white, tense face of the prisoner holding his own nervous gaze—and, almost out of the lock, stumbled over the metal pressure rings. And the gun was out of his unsure grip, clattering somewhere near his slithering feet, as he started to fall.
   
   He saw the guardsman hurl himself forward; then he was flung spinning, back against the engine-room door. In a flash, even as he struggled to keep on his feet, he saw the man in the airlock coming up from a crouch, shifting the pistol in his right hand to reach its firing lever; he saw Mury sidestep swiftly and throw the master control switch outside.
   
   The inner lock whooshed shut, barely missing Ryd. At the same instant, the flame gun lighted locks and passage with one terrific flash, and a scorched, discolored spot appeared on the beveled metal of the opposite lock a foot from Mury's right shoulder.
   
   "You damned clumsy little fool—" said Mury with soft intensity. Then, while the air around the metal walls still buzzed and snapped with blue sparks, he whirled and went up the control-room gangway in two quick bounds. Even as he went the flame gun thundered again in the starboard airlock.
   
   Mury was just in time, for the pilot had been about to flash "Ready" to the Communications Tower when the explosions had given him pause. But the latter and his two companions were neither ready nor armed; clamped in their seats at the controls, already marked, they were helpless in an instant before the leveled menace of the gun. And the imprisoned guardsman, having wasted most of his charges, was helpless, too, in his little cell of steel.
   
   "It's been tried before," said one of the masked men. He had a blond, youthful thatch and a smooth healthy face below the mask, together with an astrogator's triangled stars which made him ex officio the brains of the vessel. "Stealing a ship—it can't be done any more."
   
   "It's been done again," said Mury grimly. "And you don't know the half of it. But—you will. I'll need you. As for your friends—" The gun muzzle shifted slightly to indicate the pilot and the engineer. "Out of those clamps. You're going to ride this out in the portside airlock."
   
   He had to repeat the command, in tones that snapped with menace, before they started with fumbling, rebellious hands to strip their armor from themselves. The burly engineer was muttering phrases of obscene fervor; the weedy young pilot was wild-eyed. The blond astrogator, sitting still masked and apparently unmoved, demanded:
   
   "What do you think you're trying to do?"
   
   "What do you think?" demanded Mury in return. "I'm taking the ship into space. On schedule and on course—to meet the power shell." The flame gun moved with a jerk. "And as for you—what's your name?"
   
   "Yet Arliess."
   
   "You want to make the trip alive, don't you, Yet Arliess?"
   
   The young astrogator stared at him and at the gun through masking goggles; then he sank into his seat with a slow shudder. "Why, yes," he said as if in wonder, "I do."
   
   
  
   III
    Shahrazad drove steadily forward into deep space, vibrating slightly to the tremendous thrust of her powerful engines. The small, cramped cabin was stiflingly hot to the three armored men who sat before its banked dials, watching their steady needles.
   
   Ryd had blacked out, darkness washing into his eyes and consciousness draining from his head, as the space ship had pitched out into emptiness over the end of the runway on Pi Mesa and Mury had cut in the maindrive. Pressure greater than anything he had ever felt had crushed him; his voice had been snatched from his lips by those terrible forces and lost beneath the opening thunder of the three-inch tubes. Up and up, while the acceleration climbed to seven gravities—and Ryd had lost every sensation, not to regain them until Earth was dropping away under the towship's keel.
   
   A single gravity held them back and down in the tilted seats, and the control panels seemed to curve half above them, their banks of lights confused with the stars coldly through the great nose window. In the control room all sounds impinged on a background made up of the insect hum of air-purifiers, the almost supersonic whine of the fast-spinning gyroscopes somewhere behind them, the deep continuous growl of the engines.
   
   Mury's voice broke through that steady murmur, coming from Ryd's right.
  "You can unfasten your anticlamps, Ryd," he said dryly. "That doesn't mean you," to the young navigator, on his other hand as he sat in the pilot's seat with his pressure-clamps thrown back and his gloved hands free to caress the multiplex controls before him. Clipped to the sloping dash at his left elbow was a loaded flame gun.
   
   Ryd emerged, with much bungling, from his padded clamps, and shook his head groggily as he ran a hand through his slightly thinning hair. He ventured shakily, "Where are we?"
   
   Mury smiled slightly. "Only our astrogator," he indicated Arliess, still masked and fettered, "can tell you that with precision. I understand only enough of astrogational practice to make sure that he is holding to the course outlined on the log. For that matter ... he is an intelligent young man and if he were not blinded by notions of duty to an outworn system.... We are now somewhere near the orbit of the Moon. Isn't that right, Arliess?"
   
   The other did not seem to hear; he sat staring blindly before him through his goggles at the slowly-changing chart, where cryptic lights burned, some moving like glowing paramecia along fine-traced luminous tracks.
   
   Mury too sat silent and immobile for a minute or more. Then, abruptly, he inclined his universal chair far to the right, and his long frame seemed to tense oddly. His finger stabbed out one of the sparks of light.
   
   "What's that, Arliess?"
   
   The astrogator broke his silence. "A ship."
   
   "I know that well enough. What ship?"
   
   "I supposed you had examined the log. It would have told you that that's the liner Alborak , out of Aeropolis with a diplomatic mission for Mars."
   
   Mury shook his head regretfully. "That won't wash, Arliess. Even if you suppose her off course, no liner aspace ever carried a tenth of that drive."
   
   "I don't know what you're talking about," said Arliess. But his voice was raw and unsteady.
   
   "I'm talking about this. That ship is a warship, and it's looking for us—will intercept us inside of twenty minutes at the most!"
question_text: Describe the setting of the story.
response: In the future, Earth is a desolate planet reliant on aid from Mars to continue existing. The atmosphere seems to be controlled by technology, as there is reference to a “man-made dawn” rising over the desert. 
  
  The main settings of the story are:
  
  A dark, smoky bar at the Stumble Inn owned by Burshis, located in the city of Dynamopolis which was once the power center of North America.
  
  Pi Mesa, a busy spaceport in the desert on Earth that has many runways and a Control Tower. It serves as a place for supply ships to land with aid from Mars. 
  
  Aboard the martian space towship called Shahrazad that blasts off from Pi Mesa and enters outer space. It has a small crew and is suggested to be a small ship used for towing other cargo.
  
  