Man-Kzin Wars 25th Anniversary Edition

by Larry Niven

  The maneuvers took so much time that Locklear feared the kzin would drop the whole idea, but, “Let it be recorded that I keep my bargains, even with monkeys,” the commander grouched as the planet began to grow in the viewport.

  “Tiny suns, orbiting the planet? Stranger and stranger,” the navigator mused. “Grraf-Commander, this is—not natural.”

  “Exactly so. It is artificial,” said the commander. Brightening, he added, “Perhaps a special project, though I do not know how we could move a full-sized planet into orbit around a dwarf. Tzak-Navigator, see if this tallies with anything the Patriarchy may have on file.” No sound passed between them when the navigator looked up from his screen, but their shared glance did not improve the commander’s mood. “No? Well, backup records in triplicate,” he snapped. “Survey sensors to full gain.”

  Locklear took more notes, his heart pounding anew with every added strangeness of this singular discovery. The planet orbited several light-minutes from the dead star, with numerous satellites in synchronous orbits, blazing like tiny suns—or rather, like spotlights in imitation of tiny suns, for the radiation from those satellites blazed only downward, toward the planet’s surface. Those satellites, according to the navigator, seemed to be moving a bit in complex patterns, not all of them in the same ways—and one of them dimmed even as they watched.

  The commander brought the ship nearer, and now Tzak-Navigator gasped with a fresh astonishment. “Grraf-Commander, this planet is dotted with force-cylinder generators. Not complete shells, but open to space at orbital height. And the beam-spread of each satellite’s light flux coincides with the edge of each force cylinder. No, not all of them; several of those circular areas are not bathed in any light at all. Fallow areas?”

  “Or unfinished areas,” the commander grunted. “Perhaps we have discovered a project in the making.”

  Locklear saw blazes of blue, white, red, and yellow impinging in vast circular patterns on the planet ‘s surface. Almost as if someone had placed small models of Sirius, Sol, Fomalhaut, and other suns out here, he thought. He said nothing. If he orbited this bizarre mystery long enough, he might probe its secrets. If he orbited it too long, he would damned well die of starvation.

  Then, “Homeworld,” blurted the astonished navigator, as the ship continued its close pass around this planet that was at least half the mass of Earth.

  Locklear saw it too, a circular region that seemed to be hundreds of kilometers in diameter, rich in colors that reminded him of a kzin’s fur. The green expanse of a big lake, too, as well as dark masses that might have been mountain crags. And then he noticed that one of the nearby circular patterns seemed achingly familiar in its colors, and before he thought, he said it in Interworld: “Earth!”

  The commander leaped to a mind-numbing conclusion the moment before Locklear did. “This can only be a galactic prison—or a zoo,” he said in a choked voice. “The planet was evidently moved here, after the brown dwarf was discovered. There seems to be no atmosphere outside the force walls, and the planetary surface between those circular regions is almost as cold as interstellar deeps, according to the sensors. If it is a prison, each compound is well-isolated from the others. Nothing could live in the interstices.”

  Locklear knew that the commander had overlooked something that could live there very comfortably, but held his tongue awhile. Then, “Permission to speak,” he said.

  “Granted,” said the commander. “What do you know of this—this thing?”

  “Only this: whether it is a zoo or a prison, one of those compounds seems very Earthlike. If you left me there, I might find air and food to last me indefinitely.”

  “And other monkeys to help in Patriarch-knows-what,” the navigator put in quickly. “No one is answering my all-band queries, and we do not know who runs this prison. The Patriarchy has no prison on record that is even faintly like this.”

  “If they are keeping Heroes in a kzinti compound,” grated the commander, “this could be a planet-sized trap.”

  Tzak-Navigator: “But whose?”

  Grraf-Commander, with arrogant satisfaction: “It will not matter whose it is, if they set a vermin-sized trap and catch an armed lifeboat. There is no shell over these circular walls, and if there were, I would try to blast through it. Re-enable the lifeboat’s drive. Tzak-Navigator, as Executive Officer you will remain on alert in the Raptor. For the rest of us: sound planetfall!”

  Caught between fright and amazement, Locklear could only hang on and wait, painfully buffeted during re-entry because the kzin-sized seat harness would not retract to fit his human frame. The lifeboat, the size of a flatlander’s racing yacht, descended in a broad spiral, keeping well inside those invisible force-walls that might have damaged the craft on contact. At last the commander set his ship on a search pattern that spiraled inward while maintaining perhaps a kilometer’s height above the yellow grassy plains, the kzin-colored steaming jungle, the placid lake, the dark mountain peaks of this tiny, synthesized piece of the kzin homeworld.

  Presently, the craft settled near a promontory overlooking that lake and partially protected by the rise of a stone escarpment—the landfall of a good military mind, Locklear admitted to himself. “Apprentice Engineer: report on environmental conditions,” the commander ordered. Turning to Locklear, he added, “If this is a zoo, the zookeepers have not yet learned to capture Heroes—nor any of our food animals, according to our survey. Since your metabolism is so near ours, I think this is where we shall deposit you for safekeeping.”

  “But without prey, Grraf-Commander, he will soon starve,” said Apprentice Engineer.

  The heavy look of the commander seemed full of ironic amusement. “No, he will not. Humans eat monkeyfood, remember? This specimen is a kshat.”

  Locklear colored but tried to ignore the insult. Any creature willing to eat vegetation was, to the kzinti, kshat, a herbivore capable of eating offal. And capable of little else. “You might leave me some rations anyway,” he grumbled. “I’m in no condition to be climbing trees for food.”

  “But you soon may be, and a single monkey in this place could hide very well from a search party.”

  Apprentice Engineer, performing his extra duties proudly, waved a digit toward the screen. “Grraf-Commander, the gravity constant is exactly home normal. The temperature, too; solar flux, the same; atmosphere and micro-organisms as well. I suspect that the builders of this zoo planet have buried gravity polarizers with the force cylinder generators.”

  “No doubt those other compounds are equally equipped to surrogate certain worlds,” the commander said. “I think, whoever they are—or were—the builders work very, very slowly.”

  Locklear, entertaining his own scenario, suspected the builders worked very slowly, all right—and in ways, with motives, beyond the understanding of man or kzin. But why tell his suspicions to Scarface? Locklear had by now given his own private labels to these infuriating kzin, after noting the commander’s face-mark, the navigator’s tremors of intent, the gunner’s brutal stupidity and the engineer’s abdominal patch: to Locklear, they had become Scarface, Brickshitter, Goon, and Yellowbelly. Those labels gave him an emotional lift, but he knew better than to use them aloud.

  Scarface made his intent clear to everyone, glancing at Locklear from time to time, as he gave his orders. Water and rations for eight duty watches were to be offloaded. Because every kzin craft has special equipment to pacify those kzinti who displayed criminal behavior, especially the Kdaptists with their treasonous leanings toward humankind, Scarface had prepared a zzrou for their human captive. The zzrou could be charged with a powerful soporific drug, or—as the commander said in this case—a poison. Affixed to a host and tuned to a transmitter, the zzrou could be set to inject its material into the host at regular intervals—or to meter it out whenever the host moved too far from that transmitter.

  Scarface held the implant device, no larger than a biscuit with vicious prongs, in his hand, facing the captive. “If you
try to extract this, it will kill you instantly. If you somehow found the transmitter and smashed it—again you would die instantly. Whenever you stray two steps too far from it, you will suffer. I shall set it so that you can move about far enough to feed yourself, but not far enough to make finding you a difficulty.”

  Locklear chewed his lip for a moment, thinking. “Is the poison cumulative?”

  “Yes. And if you do not know that honor forbids me to lie, you will soon find out to your sorrow.” He turned and handed a small device to Yellowbelly. “Take this transmitter and place it where no monkey might stumble across it. Do not wander more than eight-cubed paces from here in the process—and take a sidearm and a transceiver with you. I am not absolutely certain the place is uninhabited. Captive! Bare your back.”

  Locklear, dry-mouthed, removed his jacket and shirt. He watched Yellowbelly bound back down the short passageway and, soon afterward, heard the sigh of an airlock. He turned casually, trying to catch sight of him as Goon was peering through the viewport, and then he felt a paralyzing agony as Scarface impacted the prongs of the zzrou into his back just below the left shoulder blade.

  His first sensation was a chill, and his second was a painful reminder of those zzrou prongs sunk into the muscles of his back. Locklear eased to a sitting position and looked around him. Except for depressions in the yellowish grass, and a terrifyingly small pile of provisions piled atop his shirt and jacket, he could see no evidence that a kzin lifeboat had ever landed here. “For all you know, they’ll never come back,” he told himself aloud, shivering as he donned his garments. Talking to himself was an old habit born of solitary researches, and made him feel less alone.

  But now that he thought on it, he couldn’t decide which he dreaded most, their return or permanent solitude. “So let’s take stock,” he said, squatting next to the provisions. A kzin’s rations would last three limes as long for him, but the numbers were depressing: within three flatlander weeks he’d either find water and food, or he would starve—if he did not freeze first.

  If this was really a compound designed for kzin, it would be chilly for Locklear—and it was. The water would be drinkable, and no doubt he could eat kzin game animals if he found any that did not eat him first. He had already decided to head for the edge of that lake, which lay shining at a distance that was hard to judge, when he realized that local animals might destroy what food he had.

  Wincing with the effort, he removed his light jacket again. They had taken his small utility knife but Yellowbelly had not checked his grooming tool very well. He deployed its shaving blade instead of the nail pincers and used it to slit away the jacket’s epaulets, then cut carefully at the triple-folds of cloth, grateful for his accidental choice of a woven fabric. He found that when trying to break a thread, he would cut his hand before the thread parted. Good; a single thread would support all of those rations but the water bulbs.

  His wristcomp told him the kzin had been gone an hour, and the position of that ersatz 61 Ursa Majoris hanging in the sky said he should have several more hours of light, unless the builders of this zoo had fudged on their timing. “Numbers,” he said. “You need better numbers.” He couldn’t eat a number, but knowing the right ones might feed his belly.

  In the landing pad depressions lay several stones, some crushed by the cruel weight of the kzin lifeboat. He pocketed a few fragments, two with sharp edges, tied a third stone to a twenty-meter length of thread and tossed it clumsily over a branch of a vine-choked tree. But when he tried to pull those rations up to suspend them out of harm’s way, that thread sawed the pulpy branch in two. Sighing, he began collecting and stripping vines. Favoring his right shoulder, ignoring the pain of the zzrou as he used his left arm, he finally managed to suspend the plastic-encased bricks of leathery meat five meters above the grass. It was easier to cache the water, running slender vines through the carrying handles and suspending the water in two bundles. He kept one brick and one water bulb, which contained perhaps two gallons of the precious stuff.

  And then he made his first crucial discovery, when a trickle of moisture issued from the severed end of a vine. It felt cool, and it didn’t sting his hands, and taking the inevitable plunge he licked at a droplet, and then sucked at the end of that vine. Good clean water, faintly sweet; but with what subtle poisons? He decided to wait a day before trying it again, but he was smiling a ferocious little smile.

  Somewhere within an eight-cubed of kzin paces lay the transmitter for that damned thing stuck into his back. No telling exactly how far he could stray from it. “Damned right there’s some telling,” he announced to the breeze. “Numbers, numbers,” he muttered. And straight lines. If that misbegotten son of a hairball was telling the truth—and a kzin always did—then Locklear would know within a step or so when he’d gone too far. The safe distance from that transmitter would probably be the same in all directions, a hemisphere of space to roam in. Would it let him get as far as the lake?

  He found out after sighting toward the nearest edge of the lake and setting out for it, slashing at the trunks of jungle trees with a sharp stone to blaze a straight-line trail. Not exactly straight, but nearly so. He listened hard at every step, moving steadily downhill, wondering what might have a menu with his name on it.

  That careful pace saved him a great deal of pain, hut not enough of it to suit him. Once, studying the heat-sensors that guided a captive rattlesnake to its prey back on Earth, Locklear had been bitten on the hand. It was like that now behind and below his left shoulder, a sudden burning ache that kept aching as he fell forward, writhing, hurting his right collarbone again. Locklear scrambled backward five paces or so and the sting was suddenly, shockingly, absent. That part wasn’t like a rattler bite, for sure. He cursed, but knew he had to do it: moved forward again, very slowly, until he felt the lancing bite of the zzrou. He moved back a pace and the sting was gone. “But it’s cumulative,” he said aloud. “Can’t do this for a hobby.”

  He felled a small tree at that point, sawing it with a thread tied to stones until the pulpy trunk fell, held at an angle by vines. Its sap was milky. It stung his finger. Damned if he would let it sting his tongue. He couldn’t wash the stuff off in lake water because the lake was perhaps a klick beyond his limit. He wondered if Yellowbelly had thought about that when he hid the transmitter.

  Locklear had intended to pace off the distance he had moved from his food cache, but kzin gravity seemed to drag at his heels and he knew that he needed numbers more exact than the paces of a tiring man. He unwound all of the thread on the ball, then sat down and opened his grooming tool. Whatever forgotten genius had stamped a five-centimeter rule along the length of the pincer lever, Locklear owed him. He measured twenty of those lengths and then tied a knot. He then used that first one-meter length to judge his second knot; used it again for the third; and with fingers that stung from tiny cuts, tied two knots at the five-meter point. He tied three knots at the ten-meter point, then continued until he had fifteen meters of surveying line, ignoring the last meter or so.

  He needed another half-hour to measure the distance, as straight as he could make it, back to the food cache: four hundred and thirty-seven meters. He punched the datum into his wristcomp and rested, drinking too much from that water bulb, noting that the sunlight was making longer shadows now. The sundown direction was “West” by definition. And after sundown, what? Nocturnal predators? He was already exhausted, cold, and in need of shelter. Locklear managed to pile palmlike fronds as his bed in a narrow cleft of the promontory, made the best weapon he could by tying fist-sized stones two meters apart with a thread, grasped one stone and whirled the other experimentally. It made a satisfying whirr—and for all he knew, it might even be marginally useful.

  The sunblaze fooled him, dying slowly while it was still halfway to his horizon. He punched the time into his wristcomp, and realized that the builders of this zoo might be limited in the degree to which they could surrogate a planetary surface, when other vast circul
ar cages were adjacent to this one. It was too much to ask that any zoo cage be, for its specimens, the best of all possible worlds.

  Locklear slept badly, but he slept. During the times when he lay awake, he felt the silence like a hermetic seal around him, broken only by the rasp and slither of distant tree fronds in vagrant breezes. Kzin-normal microorganisms, the navigator had said; maybe, but Locklear had seen no sign of animal life. Almost, he would have preferred stealthy footfalls or screams of nocturnal prowlers.

  The next morning he noted on his wristcomp when the ersatz kzinti sun began to blaze—not on the horizon, but seeming to kindle when halfway to its zenith—rigged a better sling for his right arm, then sat scratching in the dirt for a time. The night had lasted thirteen hours and forty-eight minutes. If succeeding nights were longer, he was in for a tooth-chattering winter. But first: FIND THAT DAMNED TRANSMITTER.

  Because it was small enough to fit in a pocket. And then, ah then, he would not be held like a lap-dog on a leash. He pounded some kzin meat to soften it and took his first sightings while swilling from a water bulb.

  The extension of that measured line, this time in the opposite direction, went more quickly except when he had to clamber on rocky inclines or cut one of those pulpy trees down to keep his sightings near-perfect. He had no spirit level, but estimated the inclines as well as he could, as he had done before, and used the wristcomp’s trigonometric functions to adjust the numbers he took from his surveying thread. That damned kzin engineer was the kind who would be half-running to do his masters bidding, and an eight-cubed of his paces might be anywhere from six hundred meters to a kilometer. Or the hidden transmitter might be almost underfoot at the cache; but no more than a klick at most. Locklear was pondering that when the zzrou zapped him again.

  He stiffened, yelped, and whirled back several paces, then advanced very slowly until he felt its first half-hearted bite, and moved back, punching in the datum, working backward using the same system to make doubly sure of his numbers. At the cache, he found his two new numbers varied by five meters and split the difference. His southwest limit had been 437 meters away, his northeast limit 529; which meant the total length of that line was 966 meters. It probably wasn’t the full diameter of his circle, but those points lay on its circumference. He halved the number: 483. That number, minus the 437, was 46 meters. He measured off forty-six meters toward the northeast and piled pulpy branches in a pyramid higher than his head. This point, by God, was one point on the full diameter of that circle perpendicular to his first line! Next he had to survey a line at a right angle to the line he’d already surveyed, a line passing through that pyramid of branches.