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, Martia 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?