The Martian Obelisk

by Linda Nagata

  “Start up our homestead,” Nate urged her. “It’s the only equipment we can afford to risk. If you drive it at an angle into the Red Oasis homestead, you might be able to push it off its tracks.”

  Susannah frowned, her fingers moving across the screen as she assembled an instruction set. “That’s a last resort option, Nate, and I’m not even sure it’s possible. There are safety protocols in the AIs’ core training modules that might prevent it.”

  She tapped send, launching the new instruction set on its nineteen-minute journey. Then she looked at Nate. “I’ve ordered the AIs that handle the construction equipment to retreat and evade. We cannot risk damage or loss of control.”

  He nodded somberly. “Agreed—but the synth and the beetle cart are in the tower.”

  “They’re safe in there, for now. But I’m going to move the homestead—assuming it starts. After seventeen years, it might not.”

  “Understood.”

  “The easiest way for someone to shut down our operation is to simply park the Red Oasis homestead at the foot of the obelisk, so that it blocks access to the stairway. If the beetle cart can’t get in and out, we’re done. So I’m going to park our homestead there first.”

  He nodded thoughtfully, eyeing the image of the obelisk. “Okay. I understand.”

  “Our best hope is that you can find out who’s instructing the Red Oasis homestead and get them to back off. But if that fails, I’ll bring the synth out, and use it to try to take manual control.”

  “The Red Oasis group could have a synth too.”

  “Yes.”

  They might also have explosives—destruction was so much easier than creation—but Susannah did not say this aloud. She did not want Nate to inquire about the explosives that belonged to Destiny. Instead she told him, “There’s no way we can know what they’re planning. All we can do is wait and see.”

  He smacked a frustrated fist into his palm. “Nineteen minutes! Nineteen minutes times two before we know what’s happened!”

  “Maybe the AIs will work it out on their own,” she said dryly. And then it was her turn to be overtaken by frustration. “Look at us! Look what we’ve come to! Invested in a monument no one will ever see. Squabbling over the possession of ruins while the world dies. This is where our hubris has brought us.” But that was wrong, so she corrected herself. “My hubris.”

  Nate was an old man with a lifetime of emotions mapped on his well-worn face. In that complex terrain it wasn’t always easy to read his current feelings, but she thought she saw hurt there. He looked away, before she could decide. A furtive movement.

  “Nate?” she asked in confusion.

  “This project matters,” he insisted, gazing at the obelisk. “It’s art, and it’s memory, and it does matter.”

  Of course. But only because it was all they had left.

  “Come into the kitchen,” she said. “I’ll make coffee.”

  * * *

  Nate’s tablet chimed while they were still sitting at the kitchen table. He took the call, listened to a brief explanation from someone on his staff, and then objected. “That can’t be right. No. There’s something else going on. Keep at it.”

  He scowled at the table until Susannah reminded him she was there. “Well?”

  “That was Davidson, my chief investigator. He tracked down a Red Oasis shareholder who told him that the rights to the colony’s equipment had not been traded or sold, that they couldn’t be, because they had no value. Not with a failed communications system.” His scowl deepened. “They want us to believe they can’t even talk to the AIs.”

  Susannah stared at him. “But if that’s true—”

  “It’s not.”

  “Meaning you don’t want it to be.” She got up from the table.

  “Susannah—”

  “I’m not going to pretend, Nate. If it’s not an AI driving that homestead, then it’s a colonist, a survivor—and that changes everything.”

  * * *

  She returned to the Mars room, where she sat watching the interloper’s approach. The wall screen refreshed every four minutes as a new image arrived from the other side of the sun. Each time it did, the bright orange homestead jumped a bit closer. It jumped right past the outermost ring of survey sticks, putting it less than two kilometers from the obelisk—close enough that she could see a faint wake of drifting dust trailing behind it, giving it a sense of motion.

  Then, thirty-eight minutes after she’d sent the new instruction set, the Destiny AI returned an acknowledgement.

  Her heart beat faster, knowing that whatever was to happen on Mars had already happened. Destiny’s construction equipment had retreated and its homestead had started up or had failed to start, had moved into place at the foot of the tower or not. No way to know until time on Earth caught up with time on Mars.

  The door opened.

  Nate shuffled into the room.

  Susannah didn’t bother to ask if Davidson had turned up anything. She could see from his grim expression that he expected the worst.

  And what was the worst?

  A slight smile stole onto her lips as Nate sat beside her on the couch.

  The worst case is that someone has lived.

  Was it any wonder they were doomed?

  * * *

  Four more minutes.

  The image updated.

  The 360-degree camera, mounted on a steel pole sunk deep into the rock, showed Destiny profoundly changed. For the first time in seventeen years, Destiny’s homestead had moved. It was parked by the tower, just as Susannah had requested. She twisted around, looking for the bright green corner of the factory beyond the distant ridge—but she couldn’t see it.

  “Everything is as ordered,” Susannah said.

  The Red Oasis homestead had reached the green survey sticks.

  “An AI has to be driving,” Nate insisted.

  “Time will tell.”

  Nate shook his head. “Time comes with a nineteen minute gap. Truth is in the radio silence. It’s an AI.”

  * * *

  Four more minutes of silence.

  When the image next refreshed, it showed the two homesteads, nose to nose.

  * * *

  Four minutes.

  The panorama looked the same.

  Four minutes more.

  No change.

  Four minutes.

  Only the angle of sunlight shifted.

  Four minutes.

  A figure in an orange pressure suit stood beside the two vehicles, gazing up at the tower.

  * * *

  Before the Martian Obelisk, when Shaun was still alive, two navy officers in dress uniforms had come to the house, and in formal voices explained that the daughter Susannah had birthed and nurtured and shaped with such care was gone, her future collapsed to nothing by a missile strike in the South China Sea.

  “We must go on,” Shaun ultimately insisted.

  And they had, bravely.

  Defiantly.

  Only a few years later their second child and his young wife had vanished into the chaos brought on by an engineered plague that decimated Hawaii’s population, turning it into a state under permanent quarantine. Day after excruciating day as they’d waited for news, Shaun had grown visibly older, hope a dying light, and when it was finally extinguished he had nothing left to keep him moored to life.

  Susannah was of a different temper. The cold ferocity of her anger had nailed her into the world. The shape it took was the Martian Obelisk: one last creative act before the world’s end.

  She knew now the obelisk would never be finished.

  * * *

  “It’s a synth,” Nate said. “It has to be.”

  The AI contradicted him. “Text message,” it announced.

  “Read it,” Susannah instructed.

  Alix obeyed, reading the message in an emotionless voice. “Message sender: Red Oasis resident Tory Eastman. Message body as transcribed audio: Is anyone out there? Is anyone listening? My
name is Tory Eastman. I’m a refugee from Red Oasis. Nineteen days in transit with my daughter and son, twins, three years old. We are the last survivors.”

  These words induced in Susannah a rush of fear so potent she had to close her eyes against a dizzying sense of vertigo. There was no emotion in the AI’s voice and still she heard in it the anguish of another mother:

  “The habitat was damaged during the emergency. I couldn’t maintain what was left and I had no communications. So I came here. Five thousand kilometers. I need what’s here. I need it all. I need the provisions and I need the equipment and I need the command codes and I need the building materials. I need to build my children a new home. Please. Are you there? Are you an AI? Is anyone left on Earth? Respond. Respond please. Give me the command codes. I will wait.”

  For many seconds—and many, many swift, fluttering heartbeats—neither Nate nor Susannah spoke. Susannah wanted to speak. She sought for words, and when she couldn’t find them, she wondered: am I in shock? Or is it a stroke?

  Nate found his voice first: “It’s a hoax, aimed at you, Susannah. They know your history. They’re playing on your emotions. They’re using your grief to wreck this project.”

  Susannah let out a long breath, and with it, some of the horror that had gripped her. “We humans are amazing,” she mused, “in our endless ability to lie to ourselves.”

  He shook his head. “Susannah, if I thought this was real—”

  She held up a hand to stop his objection. “I’m not going to turn over the command codes. Not yet. If you’re right and this is a hoax, I can back out. But if it’s real, that family has pushed the life support capabilities of their homestead to the limit. They can move into our vehicle—that’ll keep them alive for a few days—but they’ll need more permanent shelter soon.”

  “It’ll take months to build a habitat.”

  “No. It’ll take months to make the tiles to build a habitat—but we already have a huge supply of tiles.”

  “All of our tiles are tied up in the obelisk.”

  “Yes.”

  He looked at her in shock, struck speechless.

  “It’ll be okay, Nate.”

  “You’re abandoning the project.”

  “If we can help this family survive, we have to do it—and that will be the project we’re remembered for.”

  “Even if there’s no one left to remember?”

  She pressed her lips tightly together, contemplating the image of the obelisk. Then she nodded. “Even so.”

  Knowing the pain of waiting, she sent a message of assurance to Destiny Colony before anything else. Then she instructed the synth and the beetle cart to renew their work, but this time in reverse: the synth would unlink the fiber tiles beginning at the top of the obelisk and the beetle would carry them down.

  * * *

  After an hour—after she’d traded another round of messages with a grateful Tory Eastman and begun to lay out a shelter based on a standard Martian habitat—she got up to stretch her legs and relieve her bladder. It surprised her to find Nate still in the living room. He stood at the front window, staring out at the mist that never brought enough moisture into the forest.

  “They’ll be alone forever,” he said without turning around. “There are no more missions planned. No one else will ever go to Mars.”

  “I won’t tell her that.”

  He looked at her over his shoulder. “So you are willing to sacrifice the obelisk? It was everything to you yesterday, but today you’ll just give it up?”

  “She drove a quarter of the way around the planet, Nate. Would you ever have guessed that was possible?”

  “No,” he said bitterly as he turned back to the window. “No. It should not have been possible.”

  “There’s a lesson for us in that. We assume we can see forward to tomorrow, but we can’t. We can’t ever really know what’s to come—and we can’t know what we might do, until we try.”

  * * *

  When she came out of the bathroom, Nate was sitting down in the rickety old chair by the door. With his rounded shoulders and his thin white hair, he looked old and very frail. “Susannah—”

  “Nate, I don’t want to argue—”

  “Just listen. I didn’t want to tell you before because, well, you’ve already suffered so many shocks and even good news can come too late.”

  “What are you saying?” she said, irritated with him now, sure that he was trying to undermine her resolve.

  “Hawaii’s been under quarantine because the virus can be latent for—”

  She guessed where this was going. “For years. I know that. But if you’re trying to suggest that Tory and her children might still succumb to whatever wiped out Red Oasis—”

  “They might,” he interrupted, sounding bitter. “But that’s not what I was going to say.”

  “Then what?”

  “Listen, and I’ll tell you. Are you ready to listen?”

  “Yes, yes. Go ahead.”

  “A report came out just a few weeks ago. The latest antivirals worked. The quarantine in Hawaii will continue for several more years, but all indications are the virus is gone. Wiped out. No sign of latent infections in over six months.”

  Her hands felt numb; she felt barely able to shuffle her feet as she moved to take a seat in an antique armchair. “The virus is gone? How can they know that?”

  “Blood tests. And the researchers say that what they’ve learned can be applied to other contagions. That what happened in Hawaii doesn’t ever have to happen again.”

  Progress? A reprieve against the long decline?

  “There’s more, Susannah.”

  The way he said it—his falling tone—it was a warning that set her tired heart pounding.

  “You asked me to act as your agent,” he reminded her. “You asked me to screen all news, and I’ve done that.”

  “Until now.”

  “Until now,” he agreed, looking down, looking frightened by the knowledge he had decided to convey. “I should have told you sooner.”

  “But you didn’t want to risk interrupting work on the obelisk?”

  “You said you didn’t want to hear anything.” He shrugged. “I took you at your word.”

  “Nate, will you just say it?”

  “You have a granddaughter, Susannah.”

  She replayed these words in her head, once, twice. They didn’t make sense.

  “DNA tests make it certain,” he explained. “She was born six months after her father’s death.”

  “No.” Susannah did not dare believe it. It was too dangerous to believe. “They both died. That was confirmed by the survivors. They posted the IDs of all the dead.”

  “Your daughter-in-law lived long enough to give birth.”

  Susannah’s chest squeezed tight. “I don’t understand. Are you saying the child is still alive?”

  “Yes.”

  Anger rose hot, up out of the past. “And how long have you known? How long have you kept this from me?”

  “Two months. I’m sorry, but …”

  But we had our priorities. The tombstone. The Martian folly.

  She stared at the floor, too stunned to be happy, or maybe she’d forgotten how. “You should have told me.”

  “I know.”

  “And I … I shouldn’t have walled myself off from the world. I’m sorry.”

  “There’s more,” he said cautiously, as if worried how much more she could take.

  “What else?” she snapped, suddenly sure this was just another game played by the master torturer, to draw the pain out. “Are you going to tell me that my granddaughter is sickly? Dying? Or that she’s a mad woman, perhaps?”

  “No,” he said meekly. “Nothing like that. She’s healthy, and she has a healthy two-year-old daughter.” He got up, put an age-marked hand on the door knob. “I’ve sent you her contact information. If you need an assistant to help you build the habitat, let me know.”

  He was a friend, and she tried
to comfort him. “Nate, I’m sorry. If there was a choice—”

  “There isn’t. That’s the way it’s turned out. You will tear down the obelisk, and this woman, Tory Eastman, will live another year, maybe two. Then the equipment will break and she will die and we won’t be able to rebuild the tower. We’ll pass on, and the rest of the world will follow—”

  “We can’t know that, Nate. Not for sure.”

  He shook his head. “This all looks like hope, but it’s a trick. It’s fate cheating us, forcing us to fold our hand, level our pride, and go out meekly. And there’s no choice in it, because it’s the right thing to do.”

  He opened the door. For a few seconds, wind gusted in, until he closed it again. She heard his clogs crossing the porch and a minute later she heard the crunch of tires on the gravel road.

  You have a granddaughter. One who grew up without her parents, in a quarantine zone, with no real hope for the future and yet she was healthy, with a daughter already two years old.

  And then there was Tory Eastman of Mars, who had left a dying colony and driven an impossible distance past doubt and despair, because she knew you have to do everything you can, until you can’t do anymore.

  Susannah had forgotten that, somewhere in the dark years.

  She sat for a time in the stillness, in a quiet so deep she could hear the beating of her heart.

  This all looks like hope.

  Indeed it did and she well knew that hope could be a duplicitous gift from the master torturer, one that opened the door to despair.

  “But it doesn’t have to be that way,” she whispered to the empty room. “I’m not done. Not yet.”

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