The Revelation Space Collection

the half-gee triplet, which in turn encased a transparent central sphere that did not rotate. That was the null-gee core, a pressurised bubble three kilometres wide stuffed with greenery, sunlamps and various microhabitat niches. It was where children played and elderly Conjoiners came to die. It was also where Felka spent most of her time.

Nightshade decelerated and came to a stop relative to the outermost triplet. Already, servicing craft were emerging from the whirling rings. Clavain felt the jolts as the tugs latched on to Nightshade’s hull. When he had disembarked, his vessel would be hauled towards the shipyards quilting the chamber’s wall. There were many ships already berthed there: various elongated black shapes hooked into a labyrinth of support machines and repair systems. Most were smaller than Clavain’s ship, however, and there were no genuinely large vessels.

Clavain left the ship with his usual slight feeling of unease, of a job not properly finished. It had been many years before he realised quite what caused this: it was the way that his fellow Conjoiners said nothing to each other as they left the craft, despite the fact that they might have spent months together on a mission, and encountered many risks.

A robot tender collected him from one of the hull airlocks. The tender was an upright box with generous windows, squatting on a rectangular base studded with rockets and impeller fans. Clavain boarded it, watching a larger tender depart from the next airlock along. In the other tender he saw Remontoire with two other Conjoiners and the prisoner they had captured on the Demarchist ship. From a distance, the pig, slouched and docile, could easily have been mistaken for a human prisoner. For a moment Clavain thought that the pig was being pleasingly co-operative, until he recognised the glint of a pacification coronet wrapped around the prisoner’s scalp.

They had trawled the pig on the way back to the Mother Nest, but had learned nothing specific. The pig’s memories were highly blockaded; not in the Conjoiner fashion, but in the crude black-market style that was common amongst the Chasm City criminal underworld, and which was usually implemented to shield incriminating memories from the various branches of the Ferrisville constabulary: the sirens, scythes, skulltappers and eraserheads. With the kind of interrogation techniques that were possible in the Mother Nest, Clavain had no doubt that the blockades could be dismantled, but until then he could discover nothing other than that they had recovered a small-time pig criminal with violent tendencies, probably affiliated to one of the larger pig gangs operating in and around Yellowstone and the Rust Belt. Clearly the pig had been up to no good when he was captured by the Demarchists, but that was hardly unusual for pigs.

Clavain neither liked nor disliked hyperpigs. He had met enough to know that they were as morally complex as the humans they had been engineered to serve, and that every pig should be judged on its own terms. A pig from the Ganesh industrial moon had saved his life three times during the Shiva-Parvati cordon crisis of 2358. Twenty years later, on Irravel’s Moon, orbiting Fand, a group of pig brigands had taken eight of Clavain’s soldiers hostage and had then begun to eat them alive when they refused to divulge Conjoiner secrets. Only one Conjoiner had escaped, and Clavain had taken his pain-saturated memories as his own. He carried them now, locked away in the most secure kind of mental partition, so that they could not be unlocked accidentally. But even this had not made him hate pigs as a species.

He was not sure whether the same could be said for Remontoire. Deep in Remontoire’s past lay an even more horrific and protracted episode, when he had been taken prisoner by the pig pirate Run Seven. Run Seven had been one of the earliest hyperpigs, and his mind had been riddled with the psychotic scars of flawed neuro-genetic augmentation. He had captured Remontoire and isolated him from the mental communion of other Conjoiners. That had been enough of a torture, but Run Seven had not stinted on the other, older kind. And he had been very good at it.

Remontoire had escaped, finally, and the pig had died. But Clavain knew that his friend still carried profound mental wounds that now and then broke through to the surface. Clavain had watched very carefully when Remontoire made the preliminary trawls of the pig, fully aware of how easily that procedure could become a kind of torture in its own right. And while nothing that Remontoire had done had been improper — indeed, he had been almost too reticent in his enquiries — Clavain admitted to feeling a sense of misgiving. If only it had not been a pig, he thought, and if only Remontoire had not had to be associated with the prisoner’s questioning…

Clavain watched the other tender fall away from Nightshade, convinced that he had not heard the last of the pig and that the repercussions of the capture would be with them for some time. Then he smiled and told himself he was being silly. It was only a pig, after all.

Clavain issued a neural command to the simple subpersona of the tender, and with a lurch they detached from the dark whale-like hull of Nightshade. The tender whisked him inwards, through the great rushing clockwork of the centrifugal wheels, towards the green heart of the null-gee core.

This stronghold, this particular Mother Nest, was only the latest to be built. Though there had always been a Mother Nest of sorts, in the war’s early stages it had only been the largest of many camouflaged encampments. Two-thirds of the Conjoined had been spread throughout the system in smaller bases. But separation brought its own problems. The individual groups had been light-hours apart, and the lines of communication between them had been vulnerable to interception. Strategies could not be evolved in real time, nor could the group-mind state be extended to encompass two or more nests. The Conjoiners had become fragmented and nervous. Reluctantly, the decision had been taken to absorb the smaller nests into one vast Mother Nest, hoping that the advantage gained through centralisation would outweigh the danger involved in placing all their eggs in one basket.

With hindsight, the decision had been massively successful.

The tender slowed as it neared the membrane of the null-gee core. Clavain felt utterly dwarfed by the green sphere. It glowed with its own soft radiance, like a verdant miniature planet. The tender squelched through the membrane, into air.

Clavain dropped a window, allowing the core’s atmosphere to mingle with the tender’s own. His nose prickled at the vegetative assault. The air was cool and fresh and moist, its smell that of a forest after an intense midmorning thunderstorm. Though he had visited the core on countless occasions, the scent nonetheless made Clavain think not of those previous visits but of his childhood. He could not say when or where, but he had certainly walked through a forest that had this quality. It had been somewhere on Earth — Scotland, perhaps.

There was no gravity in the core, but the vegetation that filled it was not a free-floating mass. Threading the sphere from side to side were spars of oak up to three kilometres long. The spars branched and merged randomly, forming a wooden cytoskeleton of pleasing complexity. Here and there the spars bulged sufficiently to accommodate enclosed spaces, hollows that glowed with pastel lantern-light. Elsewhere, a cobweb of smaller strands provided a structural mesh to which most of the greenery was anchored. The whole assemblage was festooned with irrigation pipes and nutrient feedlines, threading back into the support machinery lurking at the very heart of the core. Sun lamps studded the membrane at irregular intervals, and were distributed throughout the green masses themselves. Now they shone with the hard blue light of high noon, but as the day progressed — they were slaved to twenty- six-hour Yellowstone time — the lamps would slide down through the spectrum towards the bronze and russet reds of evening.

Eventually night would fall. The spherical forest would come alive with the chirrups and calls of a thousand weirdly evolved nocturnal animals. Squatting on a spar near its heart during nightfall, it would be easy to believe that the forest reached away in all directions for thousands of kilometres. The distant centrifugal wheels were only visible from the last hundred metres of greenery beneath the membrane, and they were, of course, utterly silent.

The tender dodged through the mass, knowing precisely where it had to take Clavain. Now and then he saw other Conjoiners, but they were mostly children or the elderly. The children were born and raised in the one-gee triplet, but when they were six months old they were brought here at regular intervals. Supervised by the elderly, they learned the muscle and orientation skills necessary for weightlessness. For most of them it was a game, but the very best would be earmarked for duty in the arena of space war. A few, a very few, showed such heightened spatial skills that they would be steered towards battle planning.

The elderly were too frail to spend much time in the high-gee rings. Once they had come to the core, they often never left. Clavain passed a couple now. They both wore support rigs, medical harnesses that doubled as propulsion packs. Their legs trailed behind them like afterthoughts. They were coaxing a quintet of children into kicking off from one side of a woody hollow into open space.

Seen without augmented vision, the scene had a tangibly sinister quality. The children were garbed in black suits and helmets that protected their skin against sharp branches. Their eyes were hidden behind black goggles,