Thousands of feet later, the cliff terminated in a level plain, only dimly illuminated by the light trickling down from far above. It was obviously cultivated, for it was divided up into huge squares and rectangles, tinted different shades of red and brown in this submarine twilight.

  The first plants that he was able to examine at close quarters looked like tripods growing from the seabed; they had three black stems or roots that merged into a single trunk about ten feet from the ground. This continued upward for another five or six feet, and ended in a large inverted bowl. There were thousands of these tripods, ranging out to the misty horizon.

  Bowman flew over them at a low altitude for several miles before he saw that this strange field had equally strange farmers. Tripods that seemed to belong to the same species, but were colored a pale, fleshy white, were creeping very slowly along the stationary ranks. Not until he had passed several of them was Bowman able to see how they moved.

  Their root-legs were dug firmly into the ground, they would pull up one, slide it forward a few feet with slow-motion deliberation, then dig it in again before moving another. He judged that their speed was not more than a mile an hour; but for plants-if they were plants-that was very good going....

  Every so often a white tripod would lean toward a stationary one, and the two bells would meet in a kind of floral kiss or vegetable copulation. And then, after a pause of a few seconds, an extraordinary thing would happen.

  The bell of the fixed plant would snap off its stem, and go swimming away like an animated parasol-while the rest of the creature collapsed on the seabed He saw at least a dozen of the liberated bells go pulsing off into the distance, and noticed that they all swam in exactly the same direction-straight along the ranks of their "parents" until they had disappeared from sight.

  And then there were miles of a kind of nondescript orange moss, which had one astonishing property. Like the tube-plants he had met earlier, it sensed his presence-and it reacted with luminosity. For as the capsule raced across this submarine tundra, a phosphorescent, V-shaped wake spread out below it, slowly fading away about a hundred yards astern.

  Then, far ahead, he saw a band of milky white, flickering and dancing across the sensitive moss. He guessed that something had disturbed it, and he quickly saw that his guess was right.

  A glowing red blanket, which from a distance looked like a sheet of lava, was crawling over the moss. It was only about fifty feet wide, but it was advancing on a front at least a mile broad, and it left a ribbon of bare, brown soil behind it. For it was not merely crawling but eating its way forward, consuming the moss in its progress.

  Yet its victory was a hollow one, for as it flowed forward it too was being eaten, at such a rate that its width remained roughly constant. All along its trailing edge, clinging to it like giant leeches, were transparent slugs as large as a man; the whole network of their internal organs could be seen, pulsing and throbbing as they feasted.

  And who or what eats the slugs? Bowman wondered. He did not learn the answer to this question before the subtly disquieting scene had passed behind him.

  Now he had come to the edge of the farmlands, as he still mentally called them for want of a better word, and a range of rocky hills was appearing ahead. They seemed to have been carved out of multicolored strata by some natural erosive force which had left great caves and archways, hundreds of feet high. From the darkness of one cave stretched a bundle of black, whiplike tendrils or tentacles, lying motionless on a sandy seabed that had been recently disturbed, as if a broom had swept over it. It was hard not to connect those tendrils with the scrabblings in the sand, but though Bowman kept a careful watch on them as long as they were in sight, they never stirred.

  The capsule was moving parallel to these hills when, for the first time, Bowman became aware of an unmistakable sound from the world outside his protective cocoon. It was a distant roar like a hurricane or a waterfall, and it grew louder minute by minute. And presently his eyes, a little tired of reds and browns and blacks, rested thankfully on a thin column of brilliant white light stretching vertically into the somber sky.

  It was like an extremely narrow searchlight, and apparently originated from a point high up in the hills Though its color reminded him of the world he knew, he looked at it with some alarm; for it was the first time he had ever seen a light that roared.

  COSMOPOLIS

  The brilliant hairline of incandescence emerged from a great metal web, supported on three spires of rock several hundred feet high. All around it was a vast cyclonic disturbance, Bowman felt that he was watching a stationary tornado, and from uncomfortably close at hand.

  The tapering funnel of the tornado reared up out of sight through the miles of ocean above his head, and he was certain that it extended all the way into space. Some immense power was holding back the millions of tons of fluid around that fiercely radiant beam; but for what purpose, Bowman could only speculate.

  The capsule sped on past the eroded hills, and the fury of the submarine tornado died away. He was moving at a great speed across an empty desert that was crisscrossed with faint white lines, meandering in all directions like the tracks of snails. There was no sign of the creatures who had made them.

  He could no longer guess at his depth beneath the surface of this strange sea. The last rays of the sun had faded out miles above him, yet there was light all around. Overhead, living comets drifted through the ocean atmosphere, sometimes flashing on and off like electric signs; and once a great swarm of shining spirals, of all sizes and traveling in exactly parallel lines, went spinning past.

  But now the light ahead was growing minute by minute; and presently he could see that, beyond any doubt, he was at last approaching a city.

  It was brilliantly illuminated by red artificial suns suspended in the sky, stretching out of sight along the horizon in either direction. In their slanting rays he saw a panorama as strange and wonderful as New York City would have seemed to Neanderthal Man.

  There were no streets, only great buildings set in a widely spaced grid, on a plain made of some substance the color of deep ruby, sparkling with occasional flashes of light. Some of the structures were hemispherical domes, some resembled giant beehives, others were like overturned ships with their keels drawn upward into slender pinnacles. Though many were plain and angular, being based on a few simple elements, others were as complex as Gothic cathedrals or Cambodian temples; indeed, there was one group of buildings that reminded Bowman, very slightly, of Angkor Wat.

  He first glimpsed the inhabitants from about a thousand yards away, as he was entering the outskirts of the city. There was a group of half a dozen, moving from one building to another, across the wide avenue that separated the structures. Though he could not yet judge their size accurately, he could see that they had two arms and legs, and walked upright. But even from a distance the head seemed most peculiar, and the method of locomotion was also odd. The creatures moved with a slow, fluid grace- almost as if forcing themselves through a heavy liquid. Compared with these beings, humans were jerky puppets.

  It was soon obvious to Bowman that the city had no surface transportation; all its vehicles moved inside a narrow sandwich of space about fifty feet thick, and a hundred feet from the ground. He could see dozens of them, of many shapes and sizes, darting to and fro between the great towers, and he wondered how they managed to avoid collisions.

  Then he noticed barely visible lines of light forming a colored network that extended right into the city, and radiated far beyond it. Some lines were scarlet, some blue, and they hung in the air like a grid of glowing wires. They were obviously not solid, for he could see objects through them.

  Yet along those immaterial threads, either powered or controlled by them, the traffic of the city moved with unhesitating swiftness. The most common vehicles were small spheres, carrying one or two passengers; they looked like soap bubbles being driven by a gale, for they were perfectly transparent except for an opaque section of floor.
There were two seats facing forward, and a small tapering column that presumably housed the controls. That was all; but Bowman knew that the nations of Earth would gladly pay billions for the secrets that must be concealed within them.

  There were also considerably larger, oval-shaped vehicles that carried up to twenty passengers, as well as others which seemed used only for freight. Along one of the shining threads, hanging from it like raindrops on a spider's web but traveling at a good hundred miles an hour, shot a succession of spheres that contained nothing but reddish liquid. They raced past Bowman at perfectly regular intervals, heading out of sight into the city ahead of him.

  He had already moved through the first line of buildings before he had a close view of the city's inhabitants. The capsule was traveling, at a height of about three hundred feet, past a great fluted cone, scalloped with little balconies. And on one of these, his first extraterrestrial was standing in full view.

  Bowman's initial impression was of a tall, extremely elongated human being, wearing a shining metallic costume. As he came nearer, he saw that this was only partly correct. The creature was more than eight feet tall, but it was quite unclothed.

  That shining metal was its skin, which appeared to be as flexible as chain mail-or the scales of a snake, though the overall impression was not in the least reptilian. The head was utterly inhuman; it had two huge, faceted eyes, and a small, curled-up trunk of proboscis where the nose should have been. Though there was no hair, feathery structures grew where one would have expected to find the ears, and Bowman decided that these were sense organs of some kind.

  He was passing within fifty feet of the creature, and despite the abnormal and curiously detached psychological state in which he had been ever since leaving Jupiter, he felt a sudden uprush of excitement, wonder-and sheer personal pride. He was the first of all men to look upon an intelligent extraterrestrial; that was an honor of which he could never be robbed. And he was not, as some of the more pessimistic exobiologists had predicted, either shocked or nauseated. Though this creature was certainly very strange, it was not horrible. Indeed, like all living things, it had its own internal logic and beauty; even at rest, it gave an impression of power and grace.

  He had already passed the balcony when it occurred to him that the alien's behavior was rather odd. Even in a cosmopolis like this, it could not be every day that an outworlder went flying beneath your window, and Bowman assumed that he was the very first human being that anyone on this planet had ever seen. Yet the creature had ignored him completely.

  He glanced back in time to see that he had not been ignored. This alien (no, he was the alien here) had dropped its pose of indifference, and was now looking directly at him. Moreover, it was holding a small metallic rod rather like a lorgnette against one eye. At first Bowman thought that the device was some optical aid; then he decided that he was having his photograph-or its equivalent-taken.

  The creature lowered the instrument and ducked out of sight as the capsule sped away. Bowman was utterly unable to read its expression, and for the first time he realized how much training and experience was needed before one could interpret the emotions even of another human being; to read the thoughts of an alien from its attitude might be forever impossible.

  The long-awaited First Contact had come and gone in a way which seemed both anticlimactic and rather mysterious; yet it was possible, Bowman reflected, that for these creatures this was a wild and tumultuous greeting.

  When he had traveled farther into the city, he became quite sure that everyone was aware of his presence and that he was being studiously ignored. In the center of one avenue, for example, there was a small crowd gathered around a vertical sheet like a billboard or an illuminated sign. The board was covered with moving patterns and symbols, which were being studied with great attention; Bowman wondered whether they were conveying news, selling detergent, quoting interstellar rates of exchange, or announcing the departure of bubble-vehicles to distant spots.

  Whatever the information, he would not have thought it more exciting than the passage of a stranger from space only a hundred feet overhead-yet the spectators ignored him. But as he sailed by, Bowman continued to watch them in the capsule's rear-view mirror, and saw that many of them were taking peeps at him over their shoulders. So they were mildly interested; even so, there were still quite a number who never bothered to look, but continued to stare intently at the patterns on the board.

  He was now traveling directly down one of the wide avenues; ahead of him, the strange, humped buildings marched away into the distance until they blurred into the rosy mists of the horizon. Many were set with luminous panels so that they glowed like multicolored jewels. Others were covered with unbelievably intricate carvings or etchings, and Bowman could not help contrasting them with the stark glass-and-metal boxes of his own world. The architects of this planet, it seemed, built for the ages, the city appeared to be complete and finished, for nowhere was there any sign of construction or demolition. At first this surprised him; then he remembered that all terrestrial cities had been built by ephemeral, exploding societies, and he must now be observing a culture of a wholly different type.

  Another proof of that lay in the spaciousness of the city; there was none of the hideous urban overcrowding so universal on Earth. That also was not surprising, for any really long-lived civilization had to have complete population control. It must have been thousands of years since these creatures had stabilized their society, and decided that it was better for a million to live in comfort than for ten million to starve in squalor. This was a lesson that his own world had been slow to learn.

  Sometimes he observed, as in a distorting mirror, obvious reflections of terrestrial life. Though there were no traffic jams, frustrated motorists, or harried pedestrians he did see one stationary line of patient citizens waiting to enter a large domed structure. He wondered if they were first- nighters, bargain hunters, or enthusiasts for some wholly incomprehensible cause; it gave him a certain satisfaction to know that, even in the most advanced society, it was still sometimes necessary to wait in line.

  And once he passed over what seemed to be a nursery school or a children's playground. He looked down at it with intense interest, for until now all the creatures he had seen in the streets had been adults. for the first time, it struck him as odd he had seen not a single specimen of their young.

  But here they were, dozens of them-playing just like human children in a small park on the roof of a low, oval building. It was a charming, almost pastoral scene; there was a grove of trees that might have come from Earth, a plant like a gigantic orchid that obviously did not, a tiny lake with a fountain in its center, some mysterious machines that were being operated by small, intent figures- and a pair of grown-ups watching from a distance.

  The children were all exactly the same size, Bowman judged them to be about five feet high. They looked as if they had been manufactured in an identical bath, and he wondered how these creatures reproduced. Despite their lack of any clothes except obviously functional harness that supported pouches, pockets, and occasional pieces of equipment, Bowman had seen no sign of sexual differentiation-or even of sex. Here was another of the thousands of questions he must file away, in the hope of one day finding the answer.

  The children's reaction to his presence was wholly different from the adults'. As soon as the capsule passed over their playground, they at once abandoned their activities and stared up at him with obvious interest and excitement. Several pointed and waved; and one seemed to be aiming something like a small gun.

  Bowman looked at this device uneasily. It reminded him of the toy "ray guns" he had played with as a child-and in a super-civilization like this, a toy might be capable of almost anything....

  He flinched as the trigger was pulled, for it suddenly occurred to him that he might be regarded as expendable as a rabbit, to a boy given his first air rifle. But all that happened was that a shining silver vortex ring emerged from the gun, shot swiftl
y toward the capsule, and bounced off it harmlessly, still expanding.

  There was a considerable commotion in the playground. The two adults advanced rapidly on the young marksman, who was promptly deprived of his toy.

  A little later he passed close to a shopping center-or so, for want of a better name, he supposed it to be. It was a huge, irregular structure with dozens of setback floors, and at least fifty of the luminous sky-tracks led into it at various levels. Along these tracks moved a steady flow of the transparent spheres and ovoids, carrying goods of various kinds. It was strange to see, hurrying through the air, perfectly recognizable articles of furniture like tables and chairs-followed by utterly weird pieces of machinery, or tanks of glowing colored gas.

  And nothing seemed to go into the building; objects only came out of it. Nor were there any customers, though that was not so surprising; even on backward Earth, most shopping was now done by TV.