Now he knew. It was loneliness, appalling loneliness, of the kind he had known when he had received no more word from the men in the tanks and he had believed himself the only human being on the face of this world.

  After a while, the tears dried. He felt better and wished she would also be relieved. Apparently she perceived his sympathy, for she smiled at him through her tears. And in an irresistible gust of rapport and affection she kissed his hand and then stuck two of his fingers in her mouth. This, he thought, must be her way of expressing friendship. Or perhaps it was gratitude for his presence. Or just sheer joy. In any event, he thought, her society must have a high oral orientation.

  "Poor Martia," he murmured. "It must be a terrible thing to have to turn to one as alien and weird as I must seem. Especially to one who, a little while ago, you weren't sure wasn't going to eat you up."

  He removed his fingers but, seeing her rejected look, he impulsively took hers in his mouth.

  Strangely, this caused another burst of weeping. However, he quickly saw that it was happy weeping. After it was over, she laughed softly, as if pleased.

  Lane took a towel and wiped her eyes and held it over her nose while she blew.

  Now, strengthened, she was able to point out certain illustrations and by signs give him clues to what they meant.

  This child's book started with an account of the dawn of life on her planet. The planet revolved around a star that, according to a simplified map, was in the center of the Galaxy.

  Life had begun there much as it had on Earth. It had developed in its early stages on somewhat the same lines. But there were some rather disturbing pictures of primitive fish life. Lane wasn't sure of his interpretation, however, for these took much for granted.

  They did show plainly that evolution there had picked out biological mechanisms with which to advance different from those on Earth.

  Fascinated, he traced the passage from fish to amphibian to reptile to warmblooded but non-mammalian creature to an upright ground-dwelling apelike creature to beings like Martia.

  Then the pictures depicted various aspects of this being's prehistoric life. Later, the invention of agriculture, working of metals, and so on.

  The history of civilization was a series of pictures whose meaning he could seldom grasp. One thing was unlike Earth's history. There was a relative absence of warfare. The Rameseses, Genghis Khans, Attilas, Caesars, Hitlers, seemed to be missing.

  But there was more, much more. Technology advanced much as it had on Earth, despite a lack of stimulation from war. Perhaps, he thought, it had started sooner than on his planet. He got the impression that Martia's people had evolved to their present state much earlier than Homo sapiens.

  Whether that was true or not, they now surpassed man. They could travel almost as fast as light, perhaps faster, and had mastered interstellar travel.

  It was then that Martia pointed to a page which bore several photographs of Earth, obviously taken at various distances by a spaceship.

  Behind them an artist had drawn a shadowy figure, half-ape, half-dragon.

  "Earth means this to you?" Lane said. "Danger? Do not touch?"

  He looked for other photos of Earth. There were many pages dealing with other planets but only one of his home. That was enough.

  "Why are you keeping us under distant surveillance?" said Lane. "You're so far ahead of us that, technologically speaking, we're Australian aborigines. What're you afraid of?"

  Martia stood up, facing him. Suddenly, viciously, she snarled and clicked her teeth and hooked her hands into claws.

  He felt a chill. This was the same pantomime she had used when demonstrating the mindless kill-craziness of the caged male legger.

  He bowed his head. "I can't really blame you. You're absolutely correct. If you contacted us, we'd steal your secrets. And then, look out! We'd infest all of space!"

  He paused, bit his lip, and said, "Yet we're showing some signs of progress. There's not been a war or a revolution for fifteen years; the UN has been settling problems that would once have resulted in a world war; Russia and the U.S. are still armed but are not nearly as close to conflict as they were when I was born. Perhaps. . .?

  "Do you know, I bet you've never seen an Earthman in the flesh before. Perhaps you've never seen a picture of one, or if you did, they were clothed. There are no photos of Earth people in these books. Maybe you knew we were male and female, but that didn't mean much until you saw me taking a shower. And the suddenly revealed parallel between the male dekaped and myself horrified you. And you realized that this was the only thing in the world that you had for companionship. Almost as if I'd been shipwrecked on an island and found the other inhabitant was a tiger.

  "But that doesn't explain what you are doing here, alone, living in these tubes among the indigenous Martians. Oh, how I wish I could talk to you!

  "With thee conversing," he said, remembering those lines he had read the last night in the base.

  She smiled at him, and he said, "Well, at least you're getting over your scare. I'm not such a bad fellow, after all, heh?"

  She smiled again and went to a cabinet and from it took paper and pen. With them, she made one simple sketch after another. Watching her agile pen, he began to see what had happened.

  Her people had had a base for a long time -- a long long time -- on the side of the Moon the Terrestrials could not see. But when rockets from Earth had first penetrated into space, her people had obliterated all evidences of the base. A new one had been set up on Mars.

  Then, as it became apparent that a Terrestrial expedition would be sent to Mars, that base had been destroyed and another one set up on Ganymede.

  However, five scientists had remained behind in these simple quarters to complete their studies of the dekapeds. Though Martia's people had studied these creatures for some time, they still had not found out how their bodies could endure the differences between tube pressure and that in the open air. The four believed that they were breathing hot on the neck of this secret and had gotten permission to stay until just before the Earthmen landed.

  Martia actually was a native, in the sense that she had been born and raised here. She had been seven years here, she indicated, showing a sketch of Mars in its orbit around the sun and then holding up seven fingers.

  That made her about fourteen Earth years old, Lane estimated. Perhaps these people reached maturity a little faster than his. That is, if she were mature. It was difficult to tell.

  Horror twisted her face and widened her eyes as she showed him what had happened the night before they were to leave for Ganymede.

  The sleeping party had been attacked by an uncaged male legger.

  It was rare that a male got loose. But he occasionally managed to escape. When he did, he destroyed the entire colony, all life in the tube wherever he went. He even ate the roots of the trees so that they died, and oxygen ceased to flow into that section of the tunnel.

  There was only one way a forewarned colony could fight a rogue male -- a dangerous method. That was to release their own male. They selected the few who would stay behind and sacrifice their lives to dissolve the bars with an acid secretion from their bodies while the others fled. The queen, unable to move, also died. But enough of her eggs were taken to produce another queen and another consort elsewhere.

  Meanwhile, it was hoped that the males would kill each other or that the victor would be so crippled that he could be finished off by the soldiers.

  Lane nodded. The only natural enemy of the dekapeds was an escaped male. Left unchecked, they would soon crowd the tubes and exhaust food and air. Unkind as it seemed, the escape of a male now and then was the only thing that saved the Martians from starvation and perhaps extinction.

  However that might be, the rogue had been no blessing in disguise for Mania's people. Three had been killed in their sleep before the other two awoke. One had thrown herself at the beast and shouted to Martia to escape.

  Almost insane with fear, Mar
tia had nevertheless not allowed panic to send her running. Instead, she had dived for a cabinet to get a weapon.

  -- A weapon, thought Lane. I'll have to find out about that.

  Martia acted out what had happened. She had gotten the cabinet door open and reached in for the weapon when she felt the beak of the rogue fastening on her leg. Despite the shock, for the beak cut deeply into the blood vessels and muscles, she managed to press the end of the weapon against the male's body. The weapon did its work, for the male dropped on the floor. Unfortunately, the beaks did not relax but held their terrible grip on her thigh, just above the knee.

  Here Lane tried to interrupt so he could get a description of what the weapon looked like and of the principle of its operation. Martia, however, ignored his request. Seemingly, she did not understand his question, but he was sure that she did not care to reply. He was not entirely trusted, which was understandable. How could he blame her? She would be a fool to be at ease with such an unknown quantity as himself. That is, if he were unknown. After all, though she did not know him well personally, she knew the kind of people from whom he came and what could be expected from them. It was surprising that she had not left him to die in the garden, and it was amazing that she had shared that communion of bread and wine with him.

  Perhaps, he thought, it is because she was so lonely and any company was better than nothing. Or it might be that he acted on a higher ethical plane than most Earthmen and she could not endure the idea of leaving a fellow sentient being to die, even if she thought him a bloodthirsty savage.

  Or she might have other plans for him, such as taking him prisoner.

  Martia continued her story. She had fainted and some time later had awakened. The male was beginning to stir, so she had killed him this time.

  One more item of information, thought Lane. The weapon is capable of inflicting degrees of damage.

  Then, though she kept passing out, she had dragged herself to the medicine chest and treated herself. Within two days she was up and hobbling around, and the scars were beginning to fade.

  They must be far ahead of us in everything, he thought. According to her, some of her muscles had been cut. Yet they grew together in a day.

  Martia indicated that the repair of her body had required an enormous amount of food during the healing. Most of her time had been spent in eating and sleeping. Reconstruction, even if it took place at a normal accelerated rate, still required the same amount of energy.

  By then the bodies of the male and of her companions were stinking with decay. She had had to force herself to cut them up and dispose of them in the garbage burner.

  Tears welled in her eyes as she recounted this, and she sobbed.

  Lane wanted to ask her why she had not buried them, but he reconsidered. Though it might not be the custom among her kind to bury the dead, it was more probable that she wanted to destroy all evidence of their existence before Earthmen came to Mars.

  Using signs, he asked her how the male had gotten into the room despite the gate across the tunnel. She indicated that the gate was ordinarily closed only when the dekapeds were awake or when her companions and she were sleeping. But it had been the turn of one of their number to collect eggs in the queen's chamber. As she reconstructed it, the rogue had appeared at that time and killed the scientist there. Then, after ravening among the still-sleeping colony, it had gone down the tube and there had seen the light shining from the open tunnel. The rest of the story he knew.

  Why, he pantomimed, why didn't the escaped male sleep when all his fellows did? The one in the cage evidently slept at the same time as his companions. And the queen's guards also slept in the belief they were safe from attack.

  Not so, replied Martia. A male who had gotten out of a cage knew no law but fatigue. When he had exhausted himself in his eating and killing, he lay down to sleep. But it did not matter if it was the regular time for it or not. When he was rested, he raged through the tubes and did not stop until he was again too tired to move.

  So then, thought Lane, that explains the area of dead umbrella plans on top of the tube by the garden. Another colony moved into the devastated area, built the garden on the outside, and planted the young umbrellas.

  He wondered why neither he nor the others of his group had seen the dekapeds outside during their six days on Mars. There must be at least one pressure chamber and outlet for each colony, and there should be at least fifteen colonies in the tubes between this point and that near his base. Perhaps the answer was that the leaf- croppers only ventured out occasionally. Now that he remembered it, neither he nor anyone else had noticed any holes on the leaves. That meant that the trees must have been cropped some time ago and were now ready for another harvesting. If the expedition had only waited several days before sending out men in tracs, it might have seen the dekapeds and investigated. And the story would have been different.

  There were other questions he had for her. What about the vessel that was to take them to Ganymede? Was there one hidden on the outside, or was one to be sent to pick them up? If one was to be sent, how would the Ganymedan base be contacted? Radio? Or some -- to him -- inconceivable method?

  The blue globes! he thought. Could they be means of transmitting messages?

  He did not know or think further about them because fatigue overwhelmed him, and he fell asleep. His last memory was that of Martia leaning over him and smiling at him.

  When he awoke reluctantly, his muscles ached, and his mouth was as dry as the Martian desert. He rose in time to see Martia drop out of the tunnel, a bucket of eggs in her hand. Seeing this, he groaned. That meant she had gone into the nursery again, and that he had slept the clock around.

  He stumbled up and into the shower cubicle. Coming out much refreshed, he found breakfast hot on the table. Martia conducted the communion rite, and then they ate. He missed his coffee. The hot soup was good but did not make a satisfactory substitute. There was a bowl of mixed cereal and fruit, both of which came out of a can. It must have had a high energy content, for it made him wide awake.

  Afterward, he did some setting-up exercises while she did the dishes. Though he kept his body busy, he was thinking of things unconnected with what he was doing. What was to be his next move?

  His duty demanded that he return to the base and report. What news he would send to the orbital ship! The story would flash from the ship back to Earth. The whole planet would be in an uproar.

  There was one objection to his plan to take Martia back with him.

  She would not want to go.

  Halfway in a deep knee bend, he stopped. What a fool he was! He had been too tired and confused to see it. But if she had revealed that the base of her people was on Ganymede, she did not expect him to take the information back to his transmitter. It would be foolish on her part to tell him unless she were absolutely certain that he would be able to communicate with no one.

  That must mean that a vessel was on its way and would arrive soon. And it would not only take her but him. If he was to be killed, he would be dead now.

  Lane had not been chosen to be a member of the first Mars expedition because he lacked decision. Five minutes later, he had made up his mind. His duty was clear. Therefore, he would carry it out, even if it violated his personal feelings toward Martia and caused her injury.

  First, he'd bind her. Then he would pack up their two pressure suits, the books, and any tools small enough to carry so they might later be examined on Earth. He would make her march ahead of him through the tube until they came to the point opposite his base. There they would don their suits and go out to the dome. And as soon as possible the two would rise on the rocket to the orbital ship. This step was the most hazardous, for it was extremely difficult for one man to pilot the rocket. Theoretically, it could be done. It had to be done. Lane tightened his jaw and forced his muscles to quit quivering. The thought of violating Martia's hospitality upset him. Still, she had treated him so well for a purpose not altogether altruistic. For al
l he knew, she was plotting against him.

  There was a rope in one of the cabinets, the same flexible rope with which she had pulled him from the mire. He opened the door of the cabinet and removed it. Martia stood in the middle of the room and watched him while she stroked the head of the blue-eyed worm coiled about her shoulders. He hoped she would stay there until he got close. Obviously, she carried no weapon on her nor indeed anything except the pet. Since she had removed her suit, she had worn nothing.

  Seeing him approaching her, she spoke to him in an alarmed tone. It didn't take much sensitivity to know that she was asking him what he intended to do with the rope. He tried to smile reassuringly at her and failed. This was making him sick.

  A moment later, he was violently sick. Martia had spoken loudly one word, and it was as if it had struck him in the pit of his stomach. Nausea gripped him, his mouth began salivating, and it was only by dropping the rope and running into the shower that he avoided making a mess on the floor.

  Ten minutes later, he felt thoroughly cleaned out. But when he tried to walk to the bed, his legs threatened to give way. Martia had to support him.

  Inwardly, he cursed. To have a sudden reaction to the strange food at such a crucial moment! Luck was not on his side.

  That is, if it was chance. There had been something so strange and forceful about the manner in which she pronounced that word. Was it possible that she had set up in him -- hypnotically or otherwise -- a reflex to that word? It would, under the conditions, be a weapon more powerful than a gun.

  He wasn't sure, but it did seem strange that his body had accepted the alien food until that moment. Hypnotism did not really seem to be the answer. How could it be so easily used on him since he did not know more than twenty words of her language?

  Language? Words? They weren't necessary. If she had given him a hypnotic drug in his food, and then had awakened him during his sleep, she could have dramatized how he was to react if she wanted him to do so. She could have given him the key word, then have allowed him to go to sleep again.