One old fellow, whose chocolate-brown fur showed a heavy intermixture of gray, was sitting on the bank of the river just at the bend. Perhaps a lookout. He pulled himself to his feet as he spied Kaiser and his toothless, hard-gummed mouth opened and emitted a long whistle that might have been a greeting—or a warning to the others that a stranger approached.

The native stood perhaps five feet tall, with the heavy, blubbery body of a seal, and short, thick arms. Membranes connected the arms to his body from shoulder-pits to mid-biceps. The arms ended in three-fingered, thumbless hands. His legs also were short and thick, with footpads that splayed out at forty-five-degree angles. They gave his legs the appearance of a split tail. About him hung a rank-fish smell that made Kaiser's stomach squirm.

The old fellow sounded a cheerful chirp as Kaiser came near. Feeling slightly ineffectual, Kaiser raised both hands and held them palm forward. The other chirped again and Kaiser went on toward the main group.

They had stopped their play and eating as Kaiser approached and now most of them swam in to shore and stood in the water, staring and piping. They varied in size from small seal-pups to full-grown adults. Some chewed on bunches of water weed, which they manipulated with their lips and drew into their mouths.

They had mammalian characteristics, Kaiser had noted before, so it was not difficult to distinguish the females from the males. The proportion was roughly fifty-fifty.

Several of the bolder males climbed up beside Kaiser and began pawing his plastic clothing. Kaiser stood still and tried to keep his breathing shallow, for their odor was almost more than he could bear. One native smeared Kaiser's face with an exploring paw and Kaiser gagged and pushed him roughly away. He was bound by regulations to display no hostility to newly discovered natives, but he couldn't take much more of this.

A young female splashed water on two young males who stood near and they turned with shrill pipings and chased her into the water. The entire group seemed to lose interest in Kaiser and joined in the chase, or went back to other diversions of their own. Kaiser's inspectors followed.

They were a mindless lot, Kaiser observed. The river supplied them with an easy existence, with food and living space, and apparently they had few natural enemies.

Kaiser walked away, following the long slow bend of the river, and came to a collection of perhaps two hundred dwellings built in three haphazard rows along the river bank. He took time to study their construction more closely this time.

They were all round domes, little more than the height of a man, built of blocks that appeared to be mud, packed with river weed and sand. How they were able to dry these to give them the necessary solidity, Kaiser did not know. He had found no signs that they knew how to use fire, and all apparent evidence was against their having it. They then had to have sunlight. Maybe it rained less during certain seasons.

The domes' construction was based on a series of four arches built in a circle. When the base covering the periphery had been laid, four others were built on and between them, and continued in successive tiers until the top was reached. Each tier thus furnished support for the next above. No other framework was needed. The final tier formed the roof. They made sound shelters, but Kaiser had peered into several and found them dark and dank—and as smelly as the natives themselves.

The few loungers in the village paid little attention to Kaiser and he wandered through the irregular streets until he became bored and returned to the scout.

The Soscites II sent little that helped during the next twelve hours and Kaiser occupied his time trying again to repair the damage to the scout.

The job appeared maddeningly simply. As the scout had glided in for a soft landing, its metal bottom had ridden a concealed rock and bent inward. The bent metal had carried up with it the tube supplying the fuel pump and flattened it against the motor casing.

Opening the tube again would not have been difficult, but first it had to be freed from under the ship. Kaiser had tried forcing the sheet metal back into place with a small crowbar—the best leverage he had on hand—but it resisted his best efforts. He still could think of no way to do the job, simple as it was, though he gave his concentration to it the rest of the day.

That evening, Kaiser received information from the Soscites II that was at least definite:

Kaiser's reply was short and succinct:

Soscites II's next communication followed within twenty minutes and was signed by the ship's doctor:

Kaiser did not answer. The news was so startling, so unforeseen, that his mind refused to accept the actuality. He lay on the scout's bunk and stared at the ceiling without conscious attention, and with very little clear thought, for several hours—until the next communication came in:

Kaiser could imagine that most of the crew were not too concerned about the trouble he was in. He was not the gregarious type and had no close friends on board. He had hoped to find the solitude he liked best in space, but he had been disappointed. True, there were fewer people here, but he was brought into such intimate contact with them that he would have been more contented living in a crowded city.

His naturally unsociable nature was more irksome to the crew because he was more intelligent and efficient than they were. He did his work well and painstakingly and was seldom in error. They would have liked him better had he been more prone to mistakes. He was certain that they respected him, but they did not like him. And he returned the dislike.

The suggestion that he get some sleep might not be a bad idea. He hadn't slept in over eighteen hours, Kaiser realized—and fell instantly asleep.

The communicator had a message waiting for him when he awoke:

By now, Kaiser had accepted what had happened to him. His distress and anxiety were gone and he was impatient to do what he could to establish better contact with his uninvited tenant. With eager anticipation, he set to thinking how it could be done. After a few minutes, an idea occurred to him.

Taking a small scalpel from a medical kit, he made a shallow cut in his arm, just deep enough to bleed freely. He knew that the pain would supply the necessary glandular reaction. The cut bled a few slow drops—and as Kaiser watched, a shiny film formed and the bleeding stopped.

That checked pretty well with the ship's theory.

Perhaps the symbiote had made his senses more acute. He tried closing his eyes and fingering several objects in the room. It seemed to him that he could determine the texture of each better than before, but the test was inconclusive. Walking to the rear of the scout, he tried reading the printed words on the instrument panel. Each letter stood out sharp and clear!

Kaiser wondered if he might not make an immediate, practical use of the symbiote's apparent desire to help him. Concentrating on the discomfort of the high humidity and exaggerating his own displeasure with it, he waited. The result surprised and pleased him.

The temperature within the scout cabin seemed to lower, the moisture on his body vanished, and he was more comfortable than he had yet been here.

As a double check, he looked at the ship's thermometer. Temperature 102, humidity 113—just about the same as it had been on earlier readings.

During the next twenty-four hours, Kaiser and the mother ship exchanged messages at regular six-hour intervals. In between, he worked at repairing the damaged scout. He had no more success than before.

He tired easily and lay on the cot often to rest. Each time he seemed to drop off to sleep immediately—and awake at the exact times he had decided on beforehand. At first, despite the lack of success in straightening the bent metal of the scout bottom, there had been a subdued exhilaration in reporting each new discovery concerning the symbiote, but as time passed, his enthusiasm ebbed. His one really important problem was how to repair the scout and he was fast becoming discouraged.

At last Kaiser could bear the futility of his efforts no longer. He sent out a terse message to the Soscites II:

Kaiser packed a mudsled with tent, portable generator and guard wires, a spare sidearm and ammunition, and food for two days. He had noticed that a range of high hills, which caused the bend in the river at the native settlement, seemed to continue its long curve, and he wondered if the hills might not turn the river in the shape of a giant horseshoe. He intended to find out.

Wrapping his equipment in a plastic tarp, Kaiser eased it out the doorway and tied it on the sled. He hooked a towline to a harness on his shoulders and began his journey—in the opposite direction from the first native settlement.

He walked for more than seven hours before he found that his surmise had been correct. And a second cluster of huts, and seal-people in the river, greeted his sight. He received a further pleasant surprise. This group was decidedly more advanced than the first!

They were little different in actual physical appearance; the change was mainly noticeable in their actions and demeanor. And their odor was more subdued, less repugnant.

By signs, Kaiser indicated that he came in peace, and they seemed to understand. A thick-bodied male went solemnly to the river bank and called to a second, who dived and brought up a mouthful of weed. The first male took the weed and brought it to Kaiser. This was obviously a gesture of friendship.

The weed had a white starchy core and looked edible. Kaiser cleaned part of it with his handkerchief, bit and chewed it.

The weed had a slight iron taste, but was not unpalatable. He swallowed the mouthful and tried another. He ate most of what had been given him and waited with some trepidation for a reaction.

As dusk fell, Kaiser set up his tent a few hundred yards back from the native settlement. All apprehension about how his stomach would react to the river weed had left him. Apparently it could be assimilated by his digestive system. Lying on his air mattress, he felt thoroughly at peace with this world.

Once, just before dropping off to sleep, he heard the snuffling noise of some large animal outside his tent and picked up a pistol, just in case. However, the first jolt of the guard-wire charge discouraged the beast and Kaiser heard it shuffle away, making puzzled mewing sounds as it went.

The next morning, Kaiser left off all his clothes except a pair of shorts and went swimming in the river. The seal-people were already in the water when he arrived and were very friendly.

That friendliness nearly resulted in disaster. The natives crowded around as he swam—they maneuvered with an otter-like proficiency—and often nudged him with their bodies when they came too close. He had difficulty keeping afloat and soon turned and started back. As he neared the river edge, a playful female grabbed him by the ankle and pulled him under.

Kaiser tried to break her hold, but she evidently thought he was clowning and wrapped her warm furred arms around him and held him helpless. They sank deeper.

When his breath threatened to burst from his lungs in a stream of bubbles, and he still could not free himself, Kaiser brought his knee up into her stomach and her grip loosened abruptly. He reached the surface, choking and coughing, and swam blindly toward shore until his feet hit the river bottom.

As he stood on the bank, getting his breath, the natives were quiet and seemed to be looking at him reproachfully. He stood for a time, trying to think of a way to explain the necessity of what he had done, but there was none. He shrugged helplessly.

There was no longer anything to be gained by staying here—if they had the tools he needed, he had no way of finding out or asking for them—and he packed and started back to the scout.

Kaiser's good spirits returned on his return journey. He had enjoyed the relief from the tedium of spending day after day in the scout, and now he enjoyed the exercise of pulling the mudsled. Above the waist, he wore only the harness and the large, soft drops of rain against his bare skin were pleasant to feel.

When he reached the scout, Kaiser began to unload the sled. The tarpaulin caught on the edge of a runner and he gave it a tug to free it. To his amazement, the heavy sled turned completely over, spilling the equipment to the ground.

Perplexed, Kaiser stooped and began replacing the spilled articles in the tarp. They felt exceptionally light. He paused again, and suddenly his eyes widened.

Moving quickly to the door of the scout, he shoved his equipment through and crawled in behind it. He did not consult the communicator, as he customarily did on entering, but went directly to the warped place on the floor and picked up the crowbar he had laid there.

Inserting the bar between the metal of the scout bottom and the engine casing, he lifted. Nothing happened. He rested a minute and tried again, this time concentrating on his desire to raise the bar. The metal beneath yielded slightly—but he felt the palms of his hands bruise against the lever.

Only after he dropped the bar did he realize the force he had exerted. His hands ached and tingled. His strength must have been increased tremendously. With his plastic coat wrapped around the lever, he tried again. The metal of the scout bottom gave slowly—until the fuel pump hung free!

Kaiser did not repair the tube immediately. He let the solution rest in his hands, like a package to be opened, the pleasure of its anticipation to be enjoyed as much as the final act.

He transmitted the news of what he had been able to do and sat down to read the two messages waiting for him.

The first was quite routine:

The second report was not so routine. Kaiser thought he detected a note of uneasiness in it.

Kaiser did not answer either communication. His earlier report had covered all that he had learned lately. He lay on his cot and went to sleep.

In the morning, another message was waiting:

Kaiser wondered about the abrupt recall. Could the Soscites II be experiencing some difficulty? He shrugged the thought aside. If they were, they would have told him. The last notes had had more than just a suggestion of urgency—there appeared to be a deliberate concealing of information.

Strangely, the messages indicated need for haste did not prod Kaiser. He knew now that the job could be done, perhaps in a few hours' time. And the Soscites II would not complete its orbit of the planet for two weeks yet.

Without putting on more than the shirt and trousers he had grown used to wearing, Kaiser went outside and wandered listlessly about the vicinity of the ship for several hours. When he became hungry, he went back inside.

Another message came in as he finished eating. This one was from the captain himself:

Kaiser pushed the last of his meal—which he had been eating with his fingers—into his mouth, crumpled the tape, wiped the grease from his hands with it and dropped it to the floor.

He pondered mildly, as he packed his equipment, why he was disregarding the captain's message. For some reason, it seemed too trivial for serious consideration. He placated his slightly uneasy conscience only to the extent of packing the communicator in with his other equipment. It was a self-contained unit and he'd be able to receive messages from the ship on his trip.

The tracks of his earlier journey had been erased by the soft rain, and when Kaiser reached the river, he found that he had not returned to the village he had visited the day before. However, there were other seal-people here.

And they were almost human!

The resemblance was still not so much in their physical makeup—that was little changed from the first he had found—as in their obviously greater intelligence.

This was mainly noticeable in their facile expressions as they talked. Kaiser was even certain that he read smiles on their faces when he slipped on a particularly slick mud patch as he hurried toward them. Where the members of the first tribes had all looked almost exactly alike, these had very marked individual characteristics. Also, these had no odor—only a mild, rather pleasing scent. When they came to meet him, Kaiser could detect distinct syllabism in their pipings.

Most of the natives returned to the river after the first ten minutes of curious inspection, but two stayed behind as Kaiser set up his tent.

One was a female.

They made small noises while he went about his work. After a time, he understood that they were trying to give names to his paraphernalia. He tried saying "tent" and "wire" and "tarp" as he handled each object, but their piping voices could not repeat the words. Kaiser amused himself by trying to imitate their sounds for the articles. He was fairly successful. He was certain that he could soon learn enough to carry on a limited conversation.

The male became bored after a time and left, but the girl stayed until Kaiser finished. She motioned to him then to follow. When they reached the river bank, he saw that she wanted him to go into the water.

Before he had time to decide, Kaiser heard the small bell of the communicator from the tent behind him. He stood undecided for a moment, then returned and read the message on the tape:

Kaiser picked up a large rock and slowly, methodically pounded the communicator into a flattened jumble of metal and loose parts.

When he finished, he returned to the waiting girl on the river bank. She pointed at his plastic trousers and made laughing sounds in her throat. Kaiser returned the laugh and stripped off the trousers. They ran, still laughing, into the water.

Already the long pink hair that had been growing on his body during the past week was beginning to turn brown at the roots.