Beyond the Aquila Rift: The Best of Alastair Reynolds

  Table of Contents

  Title Page

  Great Wall of Mars

  Weather

  Beyond the Aquila Rift

  Minla’s Flowers

  Zima Blue

  Fury

  The Star Surgeon’s Apprentice

  The Sledge-Maker’s Daughter

  Diamond Dogs

  Thousandth Night

  Troika

  Sleepover

  Vainglory

  Trauma Pod

  The Last Log of the Lachrimosa

  The Water Thief

  The Old Man and the Martian Sea

  In Babelsberg

  Story Notes

  Also by Alastair Reynolds from Gollancz:

  Copyright

  GREAT WALL OF MARS

  “YOU REALISE you might die down there,” said Warren.

  Nevil Clavain looked into his brother’s one good eye; the one the Conjoiners had left him with after the battle of Tharsis Bulge. “Yes, I know,” he said. “But if there’s another war, we might all die. I’d rather take that risk, if there’s a chance for peace.”

  Warren shook his head, slowly and patiently. “No matter how many times we’ve been over this, you just don’t seem to get it, do you? There can’t ever be any kind of peace while they’re still down there. That’s what you don’t understand, Nevil. The only long-term solution here is…” he trailed off.

  “Go on,” Clavain goaded. “Say it. Genocide.”

  Warren might have been about to answer when there was a bustle of activity down the docking tube, at the far end from the waiting spacecraft. Through the door Clavain saw a throng of media people, then someone gliding through them, fielding questions with only the curtest of answers. That was Sandra Voi, the Demarchist woman who would be coming with him to Mars.

  “It’s not genocide when they’re just a faction, not an ethnically distinct race,” Warren said, before Voi was within earshot.

  “What is it, then?”

  “I don’t know. Prudence?”

  Voi approached. She bore herself stiffly, her face a mask of quiet resignation. Her ship had only just docked from Circum-Jove, after a three-week transit at maximum burn. During that time the prospects for a peaceful resolution of the current crisis had steadily deteriorated.

  “Welcome to Deimos,” Warren said.

  “Marshalls,” she said, addressing both of them. “I wish the circumstances were better. Let’s get straight to business. Warren; how long do you think we have to find a solution?”

  “Not long. If Galiana maintains the pattern she’s been following for the last six months, we’re due another escape attempt in…” Warren glanced at a readout buried in his cuff. “About three days. If she does try and get another shuttle off Mars, we’ll really have no option but to escalate.”

  They all knew what would mean: a military strike against the Conjoiner nest.

  “You’ve tolerated her attempts so far,” Voi said. “And each time you’ve successfully destroyed her ship with all the people in it. The net risk of a successful breakout hasn’t increased. So why retaliate now?”

  “It’s very simple. After each violation we issued Galiana with a stronger warning than the one before. Our last was absolute and final.”

  “You’ll be in violation of treaty if you attack.”

  Warren’s smile was one of quiet triumph. “Not quite, Sandra. You may not be completely conversant with the treaty’s fine print, but we’ve discovered that it allows us to storm Galiana’s nest without breaking any terms. The technical phrase is a police action, I believe.”

  Clavain saw that Voi was momentarily lost for words. That was hardly surprising. The treaty between the Coalition and the Conjoiners—which Voi’s neutral Demarchists had help draft—was the longest document in existence, apart from some obscure, computer-generated mathematical proofs. It was supposed to be watertight, though only machines had ever read it from beginning to end, and only machines had ever stood a chance of finding the kind of loophole which Warren was now brandishing.

  “No…” she said. “There’s some mistake.”

  “I’m afraid he’s right,” Clavain said. “I’ve seen the natural-language summaries, and there’s no doubt about the legality of a police action. But it needn’t come to that. I’m sure I can persuade Galiana not to make another escape attempt.”

  “But if we should fail?” Voi looked at Warren now. “Nevil and myself could still be on Mars in three days.”

  “Don’t be, is my advice.”

  Disgusted, Voi turned and stepped into the green cool of the shuttle. Clavain was left alone with his brother for a moment. Warren fingered the leathery patch over his ruined eye with the chrome gauntlet of his prosthetic arm, as if to remind Clavain of what the war had cost him; how little love he had for the enemy, even now.

  “We haven’t got a chance of succeeding, have we?” Clavain said. “We’re only going down there so you can say you explored all avenues of negotiation before sending in the troops. You actually want another damned war.”

  “Don’t be so defeatist,” Warren said, shaking his head sadly, forever the older brother disappointed at his sibling’s failings. “It really doesn’t become you.”

  “It’s not me who’s defeatist,” Clavain said.

  “No; of course not. Just do your best, little brother.”

  Warren extended his hand for his brother to shake. Hesitating, Clavain looked again into his brother’s good eye. What he saw there was an interrogator’s eye: as pale, colourless and cold as a midwinter sun. There was hatred in it. Warren despised Clavain’s pacifism; Clavain’s belief that any kind of peace, even a peace which consisted only of stumbling episodes of mistrust between crises, was always better than war. That schism had fractured any lingering fraternal feelings they might have retained. Now, when Warren reminded Clavain that they were brothers, he never entirely concealed the disgust in his voice.

  “You misjudge me,” Clavain whispered, before quietly shaking Warren’s hand.

  “No; I honestly don’t think I do.”

  Clavain stepped through the airlock just before it sphinctered shut. Voi had already buckled herself in; she had a glazed look now, as if staring into infinity. Clavain guessed she was uploading a copy of the treaty through her implants, scrolling it across her visual field, trying to find the loophole; probably running a global search for any references to police actions.

  The ship recognised Clavain, its interior shivering to his preferences. The green was closer to turquoise now; the readouts and controls minimalist in layout, displaying only the most mission-critical systems. Though the shuttle was the tiniest peacetime vessel Clavain had been in, it was a cathedral compared to the dropships he had flown during the war; so small that they were assembled around their occupants like Medieval armour before a joust.

  “Don’t worry about the treaty,” Clavain said. “I promise you Warren won’t get his chance to apply that loophole.”

  Voi snapped out of her trance irritatedly. “You’d better be right, Nevil. Is it me, or is your brother hoping we fail?” She was speaking Quebecois French now; Clavain shifting mental gears to follow her. “If my people discover that there’s a hidden agenda here, there’ll be hell to pay.”

  “The Conjoiners gave Warren plenty of reasons to hate them after the battle of the Bulge,” Clavain said. “And he’s a tactician, not a field specialist. After the cease-fire my knowledge of worms was even more valuable than before, so I had a role. But Warren’s skills were a lot less transferable.”

  “So that gives him a right to edge us closer to anothe
r war?” The way Voi spoke, it was as if her own side had not been neutral in the last exchange. But Clavain knew she was right. If hostilities between the Conjoiners and the Coalition re-ignited, the Demarchy would not be able to stand aside as they had fifteen years ago. And it was anyone’s guess how they would align themselves.

  “There won’t be war.”

  “And if you can’t reason with Galiana? Or are you going to play on your personal connection?”

  “I was just her prisoner, that’s all.” Clavain took the controls—Voi said piloting was a bore—and unlatched the shuttle from Deimos. They dropped away at a tangent to the rotation of the equatorial ring which girdled the moon, instantly in free-fall. Clavain sketched a porthole in the wall with his fingertip, outlining a rectangle which instantly became transparent.

  For a moment he saw his reflection in the glass: older than he felt he had any right to look, the grey beard and hair making him look ancient rather than patriarchal; a man deeply wearied by recent circumstance. With some relief he darkened the cabin so that he could see Deimos, dwindling at surprising speed. The higher of the two Martian moons was a dark, bristling lump, infested with armaments, belted by the bright, window-studded band of the moving ring. For the last nine years, Deimos was all that he had known, but now he could encompass it within the arc of his fist.

  “Not just her prisoner,” Voi said. “No one else came back sane from the Conjoiners. She never even tried to infect you with her machines.”

  “No, she didn’t. But only because the timing was on my side.” Clavain was reciting an old argument now; as much for his own benefit as Voi’s. “I was the only prisoner she had. She was losing the war by then; one more recruit to her side wouldn’t have made any real difference. The terms of cease-fire were being thrashed out and she knew she could buy herself favours by releasing me unharmed. There was something else, too. Conjoiners weren’t supposed to be capable of anything so primitive as mercy. They were spiders, as far as we were concerned. Galiana’s act threw a wrench into our thinking. It divided alliances within high command. If she hadn’t released me, they might well have nuked her out of existence.”

  “So there was absolutely nothing personal?”

  “No,” Clavain said. “There was nothing personal about it at all.”

  Voi nodded, without in any way suggesting that she actually believed him. It was a skill some women had honed to perfection, Clavain thought.

  Of course, he respected Voi completely. She had been one of the first human beings to enter Europa’s ocean, decades back. Now they were planning fabulous cities under the ice; efforts which she had spearheaded. Demarchist society was supposedly flat in structure, non-hierarchical; but someone of Voi’s brilliance ascended through echelons of her own making. She had been instrumental in brokering the peace between the Conjoiners and Clavain’s own Coalition. That was why she was coming along now: Galiana had only agreed to Clavain’s mission provided he was accompanied by a neutral observer, and Voi had been the obvious choice. Respect was easy. Trust, however, was harder: it required that Clavain ignore the fact that, with her head dotted with implants, the Demarchist woman’s condition was not very far removed from that of the enemy.

  The descent to Mars was hard and steep.

  Once or twice they were queried by the automated tracking systems of the satellite interdiction network. Dark weapons hovering in Mars-synchronous orbit above the nest locked onto the ship for a few instants, magnetic railguns powering up, before the shuttle’s diplomatic nature was established and it was allowed to proceed. The Interdiction was very efficient; as well it might be, given that Clavain had designed much of it himself. In fifteen years no ship had entered or left the Martian atmosphere, nor had any surface vehicle ever escaped from Galiana’s nest.

  “There she is,” Clavain said, as the Great Wall rose over the horizon.

  “Why do you call ‘it’ a ‘she’?” Voi asked. “I never felt the urge to personalise it, and I designed it. Besides…even if it was alive once, it’s dead now.”

  She was right, but the Wall was still awesome to behold. Seen from orbit, it was a pale, circular ring on the surface of Mars, two thousand kilometres wide. Like a coral atoll, it entrapped its own weather system; a disk of bluer air, flecked with creamy white clouds which stopped abruptly at the boundary.

  Once, hundreds of communities had sheltered inside that cell of warm, thick, oxygen-rich atmosphere. The Wall was the most audacious and visible of Voi’s projects. The logic had been inescapable: a means to avoid the millennia-long timescales needed to terraform Mars via such conventional schemes as cometary bombardment or ice-cap thawing. Instead of modifying the whole atmosphere at once, the Wall allowed the initial effort to be concentrated in a relatively small region, at first only a thousand kilometres across. There were no craters deep enough, so the Wall had been completely artificial: a vast ring-shaped atmospheric dam designed to move slowly outward, encompassing ever more surface area at a rate of a twenty kilometres per year. The Wall needed to be very tall because the low Martian gravity meant that the column of atmosphere was higher for a fixed surface pressure than on Earth. The ramparts were hundreds of meters thick, dark as glacial ice, sinking great taproots deep into the lithosphere to harvest the ores needed for the Wall’s continual growth. Yet two hundred kilometres higher the wall was a diaphanously thin membrane only microns wide; completely invisible except when rare optical effects made it hang like a frozen aurora against the stars. Eco-engineers had invaded the Wall’s liveable area with terran genestocks deftly altered in orbital labs. Flora and fauna had moved out in vivacious waves, lapping eagerly against the constraints of the Wall.

  But the Wall was dead.

  It had stopped growing during the war, hit by some sort of viral weapon which crippled its replicating subsystems, and now even the eco-system within it was failing; the atmosphere cooling, oxygen bleeding into space, pressure declining inevitably toward the Martian norm of one seven-thousandth of an atmosphere.

  He wondered how it must look to Voi; whether in any sense she saw it as her murdered child.

  “I’m sorry that we had to kill it,” Clavain said. He was about to add that it been the kind of act which war normalised, but decided that the statement would have sounded hopelessly defensive.

  “You needn’t apologise,” Voi said. “It was only machinery. I’m surprised it’s lasted as long as it has, frankly. There must still be some residual damage-repair capability. We Demarchists build for posterity, you know.”

  Yes, and it worried his own side. There was talk of challenging the Demarchist supremacy in the outer solar system; perhaps even an attempt to gain a Coalition foothold around Jupiter.

  They skimmed the top of the Wall and punched through the thickening layers of atmosphere within it, the shuttle’s hull morphing to an arrowhead shape. The ground had an arid, bleached look to it, dotted here and there by ruined shacks, broken domes, gutted vehicles or shotdown shuttles. There were patches of shallow-rooted, mainly dark-red tundra vegetation; cotton grass, saxifrage, arctic poppies and lichen. Clavain knew each species by its distinct infrared signature, but many of the plants were in recession now that the imported bird species had died. Ice lay in great silver swathes, and what few expanses of open water remained were warmed by buried thermopiles. Elsewhere there were whole zones which had reverted to almost sterile permafrost. It could have been a kind of paradise, Clavain thought, if the war had not ruined everything. Yet what had happened here could only be a foretaste of the devastation that would follow across the system, on Earth as well as Mars, if another war was allowed to happen.

  “Do you see the nest yet?” Voi said.

  “Wait a second,” Clavain said, requesting a head-up display which boxed the nest. “That’s it. A nice fat thermal signature too. Nothing else for miles around—nothing inhabited, anyway.”

  “Yes. I see it now.”

  The Conjoiner nest lay a third of the way from the Wall’s edge,
not far from the footslopes of Arsia Mons. The entire encampment was only a kilometre across, circled by a dyke which was piled high with regolith dust on one side. The area within the Great Wall was large enough to have an appreciable weather system: spanning enough Martian latitude for significant coriolis effects; enough longitude for diurnal warming and cooling to cause thermal currents.

  He could see the nest much more clearly now; details leaping out of the haze.

  Its external layout was crushingly familiar. Clavain’s side had been studying the nest from the vantage point of Deimos ever since the cease-fire. Phobos with its lower orbit would have been even better, of course—but there was no helping that, and perhaps the Phobos problem might actually prove useful in his negotiations with Galiana. She was somewhere in the nest, he knew: somewhere beneath the twenty varyinglysized domes emplaced within the rim, linked together by pressurised tunnels or merged at their boundaries like soap bubbles. The nest extended several tens of levels beneath the Martian surface; maybe deeper.

  “How many people do you think are inside?” Voi said.

  “Nine hundred or so,” said Clavain. “That’s an estimate based on my experiences as a prisoner, and the hundred or so who’ve died trying to escape since. The rest, I have to say, is pretty much guesswork.”

  “Our estimates aren’t dissimilar. A thousand or less here, and perhaps another three or four spread across the system in smaller nests. I know your side thinks we have better intelligence than that, but it happens not to be the case.”