The Fourth Science Fiction MEGAPACK ®. Айн Рэнд

was why the Smythes were on Mars.

      The Land Ethnic Nomads had a different idea. They believed the land, meaning the surface of planets, moons, and asteroids, was sacred. Humans could try to know, to explore, But they must not destroy. If life existed on Mars, if it had ever existed, or had the potential of existing, humankind must not impose its own order over the land.

      Land was sacred. All land. Even the surfaces of stars, even the spaces between stars were sacred.

      Humans, they said, did not belong on Mars.

      If asked why they lived on Mars, most Land Ethic Nomads would shrug and say it was their mission to convince people to go home, back to Earth.

      Tango and Desuetuda pretty much left Sekou alone. Hamret liked to play with him, and admired the camera and the toy rover. But this new nomad, Valkiri, sat for long hours reading to the boy, telling him tales.

      “The earth is so beautiful. And she was so sad when her children deserted her to go to the cold, dim sky of Mars. Can you draw a picture of the sad sad Earth? Let me help you. Here’s her eyes, all full of tears.”

      Valkiri’s voice faltered. She was aware of Zora standing over her. She turned the slate over and began to draw flowers (flowers!) on the reverse.

      * * * *

      “Marcus,” Zora whispered when everybody had retired that night, Sekou asleep on a bed of blankets at the foot of their bed, ostensibly because the nomads needed his room, but more because Zora didn’t trust their guests entirely “Marcus, they were preaching at our son.”

      “Let them preach,” Marcus said shortly. “Children know what they see, not what triflers story to them.”

      She curled against him, wanting the solace of his taut, warm body. She loved him better than life, angry as he sometimes made her with his silent deep thoughts. She didn’t want to outlive him. She wanted to lose herself in his body, but she knew Sekou was old enough to notice if his parents made love. She listened a long time to the soft singing in the rooms below. Valkiri making a silky music on a polished drum, Tango’s rough bass, gruff in his Mars-dry throat, Desuetuda’s voice too soft to hear much of the time, soaring in emotion. Sweet the contrast between Tango’s damaged harshness and the sweetness of the two women and the drum. Propaganda songs.

      Zora turned to him and put her hand on his chest. “Marcus, why do we have to keep them here? Couldn’t we give them some consumables and tell them to leave?”

      “In the morning, Zora. Tomorrow early, I’ll invent some reason to make them leave. Tell them Sekou has an Earth virus, that should shift them out of here.”

      She traced the ritual scars on his cheek. “That’s a good plan, baby. Play them for the fools they are.” Though she liked Tango and Desuetuda. It was the new one, Valkiri, she didn’t much care for.

      “Is it just playing? Listen to the boy breathe. May have a virus, right enough.”

      Zora fell silent. Pleading illness, her mother always said, was inviting the devil to supper. And, having lost Earth, and her family, and so much else, she sometimes wondered if Mars were enough recompense.

      Sekou seemed so fragile. Nobody wants to outlive her own child.

      She slept poorly and woke early.

      * * * *

      But the solar flare subsided in the night, and while the radiation count went down, the nomads bustled around packing. Zora had a chance to talk to Desuetuda, when the two were exchanging hydroponic stimulants recipes they didn’t want to trust to electronic mail. But Desuetuda, almost an old friend, wasn’t the problem. It was Valkiri.

      Marcus helped them drag their equipment back to their rover, and when he took his helmet off after returning, Zora could see he was scowling.

      “Not much cooperation there,” he said. “I don’t think that new girl, that Valkiri, will last long with the tribe.”

      “Where’d she come from?”

      “Lunar nomads. Last of her tribe there. Rest gave up, sold themselves to a cheap labor outsourcer on Earth—you can’t live off the land on Luna.” He made a small disapproving sound in his throat. “I wish I could talk to this group’s tribe chief. The rest of the tribe’s rovers went ahead a day. Tango says they hunkered down and rode the storm out with free radical repair drugs.”

      “A good way to die young.”

      “But painless. Stupid. And the drugs also reduce their use of consumables by about fifteen percent. Anyway, Valkiri jumped all over me. Implied we were child endangering just to have little ones here, on the Pharm. Hoped Sekou would beg us to go back to Earth.”

      * * * *

      When visitors leave, there is always cleaning up to do. Environmental parameters on oxygen and water consumption must be recalibrated to the normal settings. The hab must be tidied. Reports of the visit must be logged in and the balance sheets of consumables must be recalculated so that things will last until enough energy is generated by the solar panels and the nuke.

      So Zora didn’t notice the anomaly until after fifteen hours.

      * * * *

      She had just put on the top segment of her environment suit, ready to recheck the entry airlock, which she always did when there had been visitors, because once Chocko, a nomad from a different tribe, had left so much grit in the airlock that it froze open. When she looked at the detector in the airlock, she almost dropped her helmet.

      The radiation warning was going off like gangbusters.

      She looked around wildly for Sekou, who was playing quietly in the high pressure greenhouse. Well, not playing so much as trying out an adult role—he was clumsily transplanting a frostflower.

      The sensor for this airlock showed a lot of radiation, an alarming level. Cautiously, terrified, she grabbed a handheld sensor and ran to the airlock of the greenhouse where Sekou was humming to himself and getting his hands dirty

      . Thank Mars the shrilling of the alarm didn’t crescendo when she moved toward him.

      But it didn’t get any softer, either. That meant there was a tremendous beacon of deadly radiation coming from some distance, else moving would make it rise or diminish.

      Where, where, where?

      Think. If she grabbed Sekou, as was her instinct, she’d have to know where to move him, and quickly. Most likely the cooling system of their nuke, the hab’s power source, had sprung a leak. She’d heard of such things.

      But knowing that didn’t help. She closed her eyes to concentrate and, unbidden, an image came to her of a slow trickling of radioactive water seeping into the clean water supply that heated the house.

      “Marcus,” she called in a shaky, low voice. Then she gave in to instinct, cycled through the airlock between her and Sekou and scooped him up into her arms.

      They had no environment suit for him. He was still growing too fast. But if she couldn’t find the source of the leak, she’d have to get him out of the hab, out into the environment.

      Marcus appeared beside her, a sudden angel of rescue. Deliberate and measured movements. Competent. She exhaled a breath of gratitude. as he encircled her and Sekou in his arms.

      “It’s coming from all over,” he said, as if he had read her mind. “Hard to know what could cause such a failure.”

      “There has to be a safe place in the hab,” she said reasonably.

      “Look,” he said, and broadcast his picture of the hab’s health and life systems monitor to her wrist com.

      “Sekou—”

      Sekou had at first been curious at his mother’s urgency, but now he looked scared. He knew what radiation was; children had to know the dangers of their environment, and knowing the signs of radiation, though it was a rare hazard,