next phase of the smothering process. She was wrong. She felt a third mind enter her thoughts, quite separate from Thorn’s. This mind was bell-clear and calm, and its thoughts remained unclotted by the oppressive black choke of the machinery. She sensed curiosity and not a little hesitation, and while she also sensed fear, she did not detect the outright terror that Thorn was radiating. The fear was only an extreme kind of caution. And at the same time she gained back a little of herself, as if the black crush had relented. The third mind skirted closer to her own, and she realised, with as much shock as she was capable of registering, that it was a mind she knew. She had never encountered it on this level before, but the force of its personality was so pervasive that it was like a trumpet blast sounding a familiar refrain. It was the mind of a man and it was the mind of a man who had never had much time for doubt, or humility, or much in the way of compassion for the affairs of others. At the same time she detected the tiniest gleam of remorse and something that might even have been concern. But even as she came to that conclusion the mind snapped back, shrouding itself again, and she felt the powerful wake of its withdrawal. She screamed, properly, for she was able to move her body again. In the same moment the trunk shattered, breaking apart with a high-pitched tinkle. When she opened her eyes she was surrounded by a cloud of jostling black cubes, tumbling in disarray. The black wall across the bulkhead was breaking up. She watched the cubes attempt to merge with each other, occasionally forming larger black aggregates that lasted only a second or so before they too broke apart. Thorn was no longer pinned to his seat. He moved, shoving aside black cubes, until he was able to release Khouri from the webbing. ‘Have you any idea what the hell just happened?’ he asked, slurring his words as he spoke. I do,‘ she said. ’But I’m not sure if I believe it.‘ ‘Talk to me, Ana.’ ‘Look, Thorn. Look outside.’ He followed her gaze. Beyond the ship, the surrounding black mass was experiencing the same inability to cohere as the cubes within the ship. Windows were opening back into empty sky, closing and then re-opening elsewhere. And there was, she realised, something else out there as well. It was within the rough black shell that encompassed the ship but not of it, and as it moved — for it appeared to be orbiting the ship, looping around it in lazy open curves — the coagulated black masses moved nimbly out of its way. The shape of the object was difficult to focus on, but the impression Khouri retained later was of a whirling iron-grey gyroscope, a roughly spherical thing made out of many spinning layers. At its core, or buried somewhere within it, was a flickering source of dark red light, like a carnelian. The object — it also made her think of a spinning marble — was perhaps a metre across, but because its periphery swelled and retracted as it spun, it was difficult to be certain. All Khouri knew, all she could be sure of, was that the object had not been there before, and that the Inhibitor machinery appeared strangely apprehensive of it. ‘It’s opening a window for us,’ Thorn said, wonderingly. ‘Look. It’s given us a way to escape.’ Khouri eased him from the pilot’s position. ‘Then let’s use it,’ she said. They nosed out of the swarm of Inhibitor machines and arced towards space. On the radar Khouri watched the shell fall behind, fearful that it would smother the flickering red marble and come after them again. But they were allowed to leave. It was only later that something came up hard and fast from behind, with the same tentative radar signature that they had seen before. But the object only zipped past them at frightening acceleration, heading out into interplanetary space. Khouri watched it fall out of range, heading in the general direction of Hades, the neutron star on the system’s edge. But she had expected that. Where did the great work come from? What had instigated it? The Inhibitors did not have access to that data. All that was clear was that the work was theirs to perform and theirs alone, and that the work was the single most important activity that had ever been instigated by an intelligent agency in the history of the galaxy, perhaps even in the history of the universe itself. The nature of the work was simplicity itself. Intelligent life could not be allowed to spread across the galaxy. It could be tolerated, even encouraged, when it confined itself to solitary worlds or even solitary solar systems. But it must not infect the galaxy. Yet it was not acceptable to simply extinguish life wholesale. That would have been technologically feasible for any mature galactic culture, especially one that had the galaxy largely to itself. Artificial hypernovae could be kindled in stellar nurseries, sterilising blasts a million times more effective than supernovae. Stars could be steered and tossed into the event horizon of the sleeping supermassive black hole at the galaxy’s core, so that their disruption would fuel a cleansing burst of gamma rays. Binary neutron stars could be encouraged to collide by delicate manipulation of the local gravitational constant. Droves of self-replicating machines could be unleashed to rip worlds to rubble, in every single planetary system in the galaxy. In a million years, every old rocky world in the galaxy could have been pulverised. Prophylactic intervention in the protoplanetary discs out of which worlds coalesced could have prevented any more viable planets from forming. The galaxy would have choked in the dust of its own dead souls, glowing red across the megaparsecs. All this could have been done. But the point was not to extinguish life, rather to hold it in check. Life itself, despite its apparent profligacy, was held sacrosanct by the Inhibitors. Its ultimate preservation, most especially that of thinking life, was what they existed for. But it could not be allowed to spread. Their methodology, honed over millions of years, was simple. There were too many viable suns to watch all the time; too many worlds where simple life might suddenly bootstrap itself towards intelligence. So they established networks of triggers, puzzling artefacts dotted across the face of the galaxy. Their placement was such that an emergent culture was likely to stumble on one sooner rather than later. Equally, they were not intended to lure cultures into space inadvertently. They had to be tantalising, but not too tantalising. The Inhibitors waited between the stars, listening for the signs that one of their glittering contraptions had attracted a new species. And then, quickly and mindlessly, they converged on the site of the new outbreak. The military shuttle Voi had arrived in was docked outside, clamped to the underside of Carousel New Copenhagen via magnetic grapples. Clavain was marched aboard and told where to sit. A black helmet was lowered over his head, with only a tiny glass viewing window in the front. It was intended to block neural signals, preventing him from interfering with ambient machinery. Their caution did not surprise him in the slightest. He was potentially valuable to them — in spite of Voi’s earlier comments to the contrary, any kind of defector might make some difference, even this late in the war — but as a spider he could also cause them considerable harm. The military ship undocked and fell away from Carousel New Copenhagen. The windows in the armoured hull were quaintly fixed. Through the scratched and scuffed fifteen-centimetre-thick glass Clavain saw a trio of slim police craft shadowing them like pilot fish. He nodded at the ships. ‘They’re taking this seriously.’ ‘They’ll escort us out of Convention airspace,’ Voi
