The Institute estimated that man had exterminated more than a thousand species of mammal and bird and insect—some casually, some with malice—between now and the distant present. In this time and place there was no telling what might be a threat. Svetz shuddered. The brown man with the hairy face might well have run from a stinging thing destined to kill Hanville Svetz.
Impatiently Svetz upped the speed of his flight stick. The mission was taking far too long. Who would have guessed that centers of population would have been so far apart?
Half an hour later, shielded from the wind by a paraboloid force field, Svetz was streaking down the road at sixty miles per hour.
His luck had been incredibly bad. Wherever he had chanced across a human being, that person had been just leaving the vicinity. And he had found no centers of population.
Once he had noticed an unnatural stone outcropping high on a hill. No law of geology known to Svetz could have produced such an angular, flat-sided monstrosity. Curious, he had circled above it—and had abruptly realized that the thing was hollow, riddled with rectangular holes.
A dwelling for men? He didn’t want to believe it. Living within the hollows of such a thing would be like living underground. But men tend to build at right angles, and this thing was all right angles.
Below the hollowed stone structure were rounded, hairy-looking hummocks of dried grass, each with a man-sized door. Obviously they must be nests for very large insects. Svetz had left that place quickly.
The road rounded a swelling green hill ahead of him. Svetz followed, slowing.
A hilltop spring sent a stream bubbling downhill to break the road. Something large was drinking at the stream.
Svetz jerked to a stop in midair. Open water: deadly poison. He would have been hard put to say which had startled him more: the horse, or the fact that it had just committed suicide.
The horse looked up and saw him.
It was the same horse. White as milk, with a flowing abundance of snowy mane and tail, it almost had to be the horse that had laughed at Svetz and run. Svetz recognized the malignance in its eyes, in the moment before it turned its back.
But how could it have arrived so fast?
Svetz was reaching for the gun when the situation turned upside down.
The girl was young, surely no more than sixteen. Her hair was long and dark and plaited in complex fashion. Her dress, of strangely stiff blue fabric, reached from her neck to her ankles. She was seated in the shadow of a tree, on dark cloth spread over the dark earth. Svetz had not noticed her, might never have noticed her . . .
But the horse walked up to her, folded its legs in alternate pairs, and laid its ferocious head in her lap.
The girl had not yet seen Svetz.
“Xenophilia!” Svetz snarled the worst word he could think of. Svetz hated aliens.
The horse obviously belonged to the girl. He could not simply shoot it and take it. It would have to be purchased . . . somehow.
He needed time to think! And there was no time, for the girl might look up at any moment. Baleful brown eyes watched him as he dithered . . .
He dared waste no more time searching the countryside for a wild horse. There was an uncertainty, a Finagle factor in the math of time travel. It manifested itself as an uncertainty in the energy of a returning extension cage, and it increased with time. Let Svetz linger too long, and he could be roasted alive in the returning cage.
Moreover, the horse had drunk open water. It would die, and soon, unless Svetz could return it to 1100 PostAtomic. Thus the beast’s removal from this time could not change the history of Svetz’s own world. It was a good choice . . . if he could conquer his fear of the beast.
The horse was tame. Young and slight as she was, the girl had no trouble controlling it. What was there to fear?
But there was its natural weaponry . . . of which Ra Chen’s treacherous picture book had shown no sign. Svetz surmised that later generations routinely removed it before the animals were old enough to be dangerous. He should have come a few centuries later . . .
And there was the look in its eye. The horse hated Svetz, and it knew Svetz was afraid.
Could he shoot it from ambush?
No. The girl would worry if her pet collapsed without reason. She would be unable to concentrate on what Svetz was trying to tell her.
He would have to work with the animal watching him. If the girl couldn’t control it—or if he lost her trust—Svetz had little doubt that the horse would kill him.
The horse looked up as Svetz approached, but made no other move. The girl watched too, her eyes round with wonder. She called something that must have been a question.
Svetz smiled back and continued his approach. He was a foot above the ground, and gliding at dead slow. Riding the world’s only flying machine, he looked impressive as all hell, and knew it.
The girl did not smile back. She watched warily. Svetz was within yards of her when she scrambled to her feet.
He stopped the flight stick at once and let it settle. Smiling placatorially, he removed the heat-and-pressure device from his sash. He moved with care. The girl was on the verge of running.
The trade kit was a pouch of corundum, A1203, several phials of additives, and the heat-and-pressure gadget. Svetz poured corundum into the chamber, added a dash of chromic oxide, and used the plunger. The cylinder grew warm. Presently Svetz dropped a pigeon’s-blood star ruby into his hand, rolled it in his fingers, held it to the sun. It was red as dark blood, with a blazing white six-pointed star.
It was almost too hot to hold.
Stupid! Svetz held his smile rigid. Ra Chen should have warned him! What would she think when she felt the gem’s unnatural heat? What trickery would she suspect?
But he had to chance it. The trade kit was all he had.
He bent and rolled the gem to her across the damp ground.
She stooped to pick it up. One hand remained on the horse’s neck, calming it. Svetz noticed the rings of yellow metal around her wrist; and he also noticed the dirt.
She held the gem high, looked into its deep red fire.
“Ooooh,” she breathed. She smiled at Svetz in wonder and delight. Svetz smiled back, moved two steps nearer, and rolled her a yellow sapphire.
How had he twice chanced on the same horse? Svetz never knew. But he soon knew how it had arrived before him . . .
He had given the girl three gems. He held three more in his hand while he beckoned her onto the flight stick. She shook her head; she would not go. Instead she mounted the animal.
She and the horse, they watched Svetz for his next move.
Svetz capitulated. He had expected the horse to follow the girl while the girl rode behind him on the flight stick. But if they both followed Svetz it would be the same.
The horse stayed to one side and a little behind Svetz’s flight stick. It did not seem inconvenienced by the girl’s weight. Why should it be? It must have been bred for the task. Svetz notched his speed higher, to find how fast he could conveniently move.
Faster, he flew, and faster. The horse must have a limit . . .
He was up to eighty before he quit. The girl lay flat along the animal’s back, hugging its neck to protect her face from the wind. But the horse ran on, daring Svetz with its eyes.
How to describe such motion? Svetz had never seen ballet. He knew how machinery moved, and this wasn’t it. All he could think of was a man and a woman making love. Slippery-smooth rhythmic motion, absolute single-minded purpose, motion for the pleasure of motion. It was terrible in its beauty, the flight of the horse.
The word for such running must have died with the horse itself.
The horse would never have tired, but the girl did. She tugged on the animal’s mane, and it stopped. Svetz gave her the jewels he held, made four more and gave her one.
She was crying from the wind, crying and smiling as she took the jewels. Was she smiling for the jewels, or for the joy of the ride? Exhausted, panting, she lay w
ith her back against the warm, pulsing flank of the resting animal. Only her hand moved, as she ran her fingers repeatedly through its silver mane. The horse watched Svetz with malevolent brown eyes.
The girl was homely. It wasn’t just the jarring lack of makeup. There was evidence of vitamin starvation. She was short, less than five feet in height, and thin. There were marks of childhood disease. But happiness glowed behind her homely face, and it made her almost passable, as she clutched the corundum stones.
When she seemed rested, Svetz remounted. They went on.
He was almost out of corundum when they reached the extension cage. There it was that he ran into trouble.
The girl had been awed by Svetz’s jewels, and by Svetz himself, possibly because of his height or his ability to fly. But the extension cage scared her. Svetz couldn’t blame her. The side with the door in it was no trouble: just a seamless spherical mirror. But the other side blurred away in a direction men could not visualize. It had scared Svetz spitless the first time he saw the time machine in action.
He could buy the horse from her, shoot it here and pull it inside, using the flight stick to float it. But it would be so much easier if . . .
It was worth a try. Svetz used the rest of his corundum. Then he walked into the extension cage, leaving a trail of colored corundum beads behind him.
He had worried because the heat-and-pressure device would not produce facets. The stones all came out shaped like miniature hen’s-eggs. But he was able to vary the color, using chromic oxide for red and ferric oxide for yellow and titanium for blue; and he could vary the pressure planes, to produce cat’s-eyes or star gems at will. He left a trail of small stones, red and yellow and blue . . .
And the girl followed, frightened, but unable to resist the bait. By now she had nearly filled a handkerchief with the stones. The horse followed her into the extension cage.
Inside, she looked at the four stones in Svetz’s hand: one of each color, red and yellow and light blue and black, the largest he could make. He pointed to the horse, then to the stones.
The girl agonized. Svetz perspired. She didn’t want to give up the horse . . . and Svetz was out of corundum . . .
She nodded, one swift jerk of her chin. Quickly, before she could change her mind, Svetz poured the stones into her hand. She clutched the hoard to her bosom and ran out of the cage, sobbing.
The horse stood up to follow.
Svetz swung the rifle and shot it. A bead of blood appeared on the animal’s neck. It shied back, then sighted on Svetz along its natural bayonet.
Poor kid, Svetz thought as he turned to the door. But she’d have lost the horse anyway. It had sucked polluted water from an open stream. Now he need only load the flight stick aboard . . .
Motion caught the corner of his eye.
A false assumption can be deadly. Svetz had not waited for the horse to fall. It was with something of a shock that he realized the truth. The beast wasn’t about to fall. It was about to spear him like a cocktail shrimp.
He hit the door button and dodged.
Exquisitely graceful, exquisitely sharp, the spiral horn slammed into the closing door. The animal turned like white lightning in the confines of the cage, and again Svetz leapt for his life.
The point missed him by half an inch. It plunged past him and into the control board, through the plastic panel and into the wiring beneath.
Something sparkled and something sputtered.
The horse was taking careful aim, sighting along the spear in its forehead. Svetz did the only thing he could think of. He pulled the home-again lever.
The horse screamed as it went into free fall. The horn, intended for Svetz’s navel, ripped past his ear and tore his breathing-balloon wide open.
Then gravity returned; but it was the peculiar gravity of an extension cage moving forward through time. Svetz and the horse were pulled against the padded walls. Svetz sighed in relief.
He sniffed again in disbelief. The smell was strong and strange, like nothing Svetz had ever smelled before. The animal’s terrible horn must have damaged the air plant.
Very likely he was breathing poison. If the cage didn’t return in time . . .
But would it return at all? It might be going anywhere, any when, the way that ivory horn had smashed through anonymous wiring. They might come out at the end of time, when even the black infrasuns gave not enough heat to sustain life.
There might not even be a future to return to. He had left the flight stick. How would it be used? What would they make of it, with its control handle at one end and the brush-style static discharge at the other and the saddle in the middle? Perhaps the girl would try to use it. He could visualize her against the night sky, in the light of a full moon . . . and how would that change history?
The horse seemed on the verge of apoplexy. Its sides heaved, its eyes rolled wildly. Probably it was the cabin air, thick with carbon dioxide. Again, it might be the poison the horse had sucked from an open stream.
Gravity died. Svetz and the horse tumbled in free fall, and the horse queasily tried to gore him.
Gravity returned, and Svetz, who was ready for it, landed on top. Someone was already opening the door.
Svetz took the distance in one bound. The horse followed, screaming with rage, intent on murder. Two men went flying as it charged out into the Institute control center.
“It doesn’t take anesthetics!” Svetz shouted over his shoulder. The animal’s agility was hampered here among the desks and lighted screens, and it was probably drunk on hyperventilation. It kept stumbling into desks and men. Svetz easily stayed ahead of the slashing horn.
A full panic was developing . . .
“We couldn’t have done it without Zeera,” Ra Chen told him much later. “Your idiot tanj horse had the whole Center terrorized. All of a sudden it went completely tame, walked up to that frigid bitch Zeera, and let her lead it away.”
“Did you get it to the hospital in time?”
Ra Chen nodded gloomily. Gloom was his favorite expression and was no indication of his true feelings. “We found over fifty unknown varieties of bacteria in the beast’s bloodstream. Yet it hardly looked sick! It looked healthy as a . . . healthy as a . . . It must have tremendous stamina. We managed to save not only the horse, but most of the bacteria too, for the Zoo.”
Svetz was sitting up in a hospital bed, with his arm up to the elbow in a diagnostician. There was always the chance that he too had located some long-extinct bacterium. He shifted uncomfortably, being careful not to move the wrong arm, and asked, “Did you ever find an anesthetic that worked?”
“Nope. Sorry about that, Svetz. We still don’t know why your needles didn’t work. The tanj horse is simply immune to tranks of any kind.
“Incidentally, there was nothing wrong with your air plant. You were smelling the horse.”
“I wish I’d known that. I thought I was dying.”
“It’s driving the interns crazy, that smell. And we can’t seem to get it out of the Center.” Ra Chen sat down on the edge of the bed. “What bothers me is the horn on its forehead. The horse in the picture book had no horns.”
“No, sir.”
“Then it must be a different species. It’s not really a horse, Svetz. We’ll have to send you back. It’ll break our budget, Svetz.”
“I disagree, sir—”
“Don’t be so tanj polite.”
“Then don’t be so tanj stupid, sir.” Svetz was not going back for another horse. “People who kept tame horses must have developed the habit of cutting off the horn when the animal was a pup. Why not? We all saw how dangerous that horn is. Much too dangerous for a domestic animal.”
“Then why does our horse have a horn?”
“That’s why I thought it was wild, the first time I saw it. I suppose they didn’t start cutting off horns until later in history.”
Ra Chen nodded in gloomy satisfaction. “I thought so too. Our problem is that the Secretary-General is barely br
ight enough to notice that his horse has a horn, and the picture-book horse doesn’t. He’s bound to blame me.”
“Mmm.” Svetz wasn’t sure what was expected of him.
“I’ll have to have the horn amputated.”
“Somebody’s bound to notice the scar,” said Svetz.
“Tanj it, you’re right. I’ve got enemies at court. They’d be only too happy to claim I’d mutilated the Secretary-General’s pet.” Ra Chen glared at Svetz. “All right, let’s hear your idea.”
Svetz was busy regretting. Why had he spoken? His vicious, beautiful horse, tamely docked of its killer horn . . . He had found the thought repulsive. His impulse had betrayed him. What could they do but remove the horn?
He had it. “Change the picture book, not the horse. A computer could duplicate the book in detail, but with a horn on every horse. Use the Institute computer, then wipe the tape afterward.”
Morosely thoughtful, Ra Chen said, “That might work. I know someone who could switch the books.” He looked up from under bushy black brows. “Of course, you’d have to keep your mouth shut.”
“Yes, sir.”
“Don’t forget.” Ra Chen got up. “When you get out of the diagnostician, you start a four weeks vacation.”
“I’m sending you back for one of these,” Ra Chen told him four weeks later. He opened the bestiary. “We picked up the book in a public park around ten PostAtomic; left the kid who was holding it playing with a corundum egg.”
Svetz examined the picture. “That’s ugly. That’s really ugly. You’re trying to balance the horse, right? The horse was so beautiful, you’ve got to have one of these or the universe goes off balance.”
Ra Chen closed his eyes in pain. “Just go get us the Gila monster, Svetz. The Secretary-General wants a Gila monster.”
“How big is it?”
They both looked at the illustration. There was no way to tell.
“From the looks of it, we’d better use the big extension cage.”
Svetz barely made it back that time. He was suffering from total exhaustion and extensive second-degree burns. The thing he brought back was thirty feet long, had vestigial bat-like wings, breathed fire, and didn’t look very much like the illustration; but it was as close as anything he’d found.
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