They climbed the ladder quickly, out of breath when they reached the top. Though the wind had lessened from its peak of several hours earlier, it was still an ordeal to move around topside. The dig was in disarray, with floods and gravitometers toppled and broken, equipment strewn around.
The aircraft was hovering above them, veering to and fro as it scouted landing sites. Sylveste recognised it immediately as one of Cuvier’s; Mantell had nothing as large. Aircraft were in short supply on Resurgam: the only means of crossing distances more than a few hundred kilometres. All the aircraft in existence now had been manufactured during the early days of the colony by servitors working from local raw materials. But the constructional servitors had been destroyed or stolen during the mutiny, and consequently the artefacts they had left behind were of incalculable value to the colony. The aircraft regenerated themselves if they were involved in minor accidents, and never needed maintainance — but they could still be ruined by sabotage or recklessness. Over the years the colony had steadily depleted its supply of flying machines.
The deltoid hurt his eyes. The underside of the plane’s wing was sewn with thousands of heat elements which glowed white-hot, generating lift thermally. The contrast was too much for Calvin’s algorithms.
‘Who are they?’ one of his students asked.
‘I wish I knew,’ Sylveste said. But the fact that this plane had originated in Cuvier entirely failed to cheer him. He watched it lower, casting actinic shadows across the ground before the heat elements slid down the spectrum and the plane settled onto skids. After a moment a ramp folded out and a cluster of figures trooped from the plane. His eyes snapped to infrared — he could see the figures clearly now, even as they moved away from the plane towards him. Clad in dark clothes, they wore breather masks, helmets and what looked like strap-on armour, flashed with the Administration insignia: the closest the colony came to a fully-fledged militia. And they were carrying things — long, evil-looking rifles held in double-grips, with a torch slung under each barrel.
‘This doesn’t look good,’ Pascale said, accurately.
The squad halted a few metres from them. ‘Doctor Sylveste?’ called a voice, attenuated by the wind, which was still considerable. ‘I’ve got some bad news, I’m afraid, sir.’
He had been expecting nothing else. ‘What is it?’
‘The other crawler, sir — the one that left earlier tonight?’
‘What about it?’
‘They never made it back to Mantell, sir. We found them. There’d been a landslide — dust had built up on the ridge. They didn’t have a chance, sir.’
‘Sluka?’
‘They’re all dead, sir.’ The Administration man’s heavy breather mask made him look like an elephantine god. ‘I’m sorry. It’s lucky not all of you tried to get back at the same time.’
‘It’s more than luck,’ Sylveste said.
‘Sir? There’s one other thing.’ The guard tightened his grip on his rifle, emphasising its presence rather than aiming it. ‘You’re under arrest, sir.’
K. C. Ng’s rasp of a voice filled the cable-car’s cockpit like a trapped wasp. ‘You developing a taste for it yet? Our fair city, I mean.’
‘What would you know?’ Khouri said. ‘I mean, when was the last time you set foot outside of that damned box, Case? It can’t have been in living memory.’
He was not with her, of course — there was nowhere near enough room for a palanquin aboard her cable-car. The car was necessarily small; nothing that would attract attention so close to the conclusion of a hunt. Parked on the roof, the vehicle had looked like a tailless helicopter which had partially furled its rotors. But rather than blades, the cable-car’s arms were slender telescopic appendages, each terminating in a hook as viciously curved as a sloth’s foreclaw.
Khouri had entered the car, and the door had slumped shut, barriering the rain and the low background noise of the city. She had stated her destination, which was the Monument to the Eighty, down in the deep Mulch. The car had paused momentarily, undoubtedly calculating the optimum route based on current traffic conditions and the generally shifting topology of the cableways which would carry it there. The process took a moment because the car’s computer brain was not especially smart.
Then Khouri had felt the car’s centre of gravity shift slightly. Through the upper window of the gullwing door, she had seen one of the car’s three arms extend to more than twice its previous length, until the clawed end was able to grasp one of the cables which overran the top of the building. Now one of the other arms found a similar grasping point on an adjacent cable, and with a sudden heave they were, in a manner, airborne. For a moment the car slid down the two cables to which it had attached itself, but after a few seconds the latter of the two cables had diverged too far for the car to reach. Smoothly, it released its grasp, but before it could fall the car’s third arm swooped out and grabbed another handy cable which happened to cross their approximate path. And then they slid for another second or so, and then fell again, and then rose again, and Khouri began to recognise a too-familiar feeling in her gut. What failed to assist matters was that the car’s pendulous progress felt arbitrary, as if it was just making up its trajectory as it proceeded, luckily finding cables when it needed them. To compensate, Khouri ran through breathing exercises, restlessly tightening each finger of her black leather gloves in sequence.
‘I admit,’ Case said, ‘that I haven’t exposed myself to the city’s native fragrances for some time now. But you shouldn’t knock it. The air isn’t quite as filthy as it seems. The purifiers were one of the few things still running after the plague.’
Now that the cable-car had lofted itself past the huddle of buildings which defined her neighbourhood, a much greater expanse of Chasm City was coming slowly into view. It was strange to think that this twisted forest of malformed structures had once been the most prosperous city in human history; the place from which — for nearly two centuries — a welter of artistic and scientific innovations had sprung. Now even the locals were admitting that the place had seen better days. With little in the way of irony they were calling it the City That Never Wakes Up, because so many thousands of its one-time rich were now frozen in cryocrypts, skipping centuries in the hope that this period was only an aberration in the city’s fortunes.
Chasm City’s border was the natural crater which hemmed the city, sixty kilometres from edge to edge. Within the crater the city was ring-shaped, encircling the central maw of the chasm itself. The city sheltered under eighteen domes which spanned the crater wall and reached inwards to the chasm’s rim. Linked at their edges, supported here and there by reinforcing towers, the domes resembled sagging drapery covering the furniture of the recently deceased. In local parlance it was the Mosquito Net, though there were at least a dozen other names, in as many languages. The domes were vital to the city’s existence. Yellowstone’s atmosphere — a cold, chaotic mix of nitrogen and methane, spiced with long-chain hydrocarbons — would have been instantly deadly. Fortunately the crater sheltered the city from the worst of the winds and liquid methane flash-floods, and the broth of hot gases belching from the chasm itself could be cracked for breathable air with relatively cheap and rugged atmospheric processing technology. There were a few other settlements elsewhere on Yellowstone, much smaller than Chasm City, and they all had to go to much more trouble to keep their biospheres running.
Sometimes, in her early days on Yellowstone, Khouri had asked a few of the locals why anyone had ever bothered settling the planet in the first place if it was so inhospitable. Sky’s Edge might have its wars, but at least you could live there without domes and atmosphere-cracking systems. She had quickly learned not to expect anything resembling a consistent answer, if the question itself was not deemed an outsider’s impudence. Evidently, though, this much was clear: the chasm had drawn the first explorers and around them had accreted a permanent outpost, and then something like a frontier town. Lunatics, chancers and wild-eyed visionaries had come, driven by vague rumours of riches deep within the chasm. Some had gone home disillusioned. Some had died in the chasm’s hot, toxic depths. But a few had elected to stay because something about the nascent city’s perilous location actually appealed to them. Fast forward two hundred years and that huddle of structures had become… this.