Again Skade heard the slick rasp of card on card. What is the objective, Felka ? ‘To maintain order.’ Skade barked out a short laugh. Then there is no end-state ? This isn’t a problem in computation, Skade. The means is the end. The game has no halting state other than failure.‘ Felka bit her tongue, like a child working on some particularly tortuous piece of colouring-in. In a flurry of movement she moved six cards, dramatically altering the larger pattern in a way Skade would have sworn was not possible a moment earlier. Skade nodded, understanding. This is the Great Wall of Mars, isn’t it ? Felka looked up, but said nothing before resuming her work. Skade knew that she was right: that the game she saw Felka playing here, if indeed it could be called a game, was only a surrogate for the Wall itself. The Wall had been destroyed four hundred years earlier, and yet it had played such a vital part in Felka’s childhood that she regressed towards her memories of it at the slightest sign of external stress. Skade felt anger. She knelt down again and destroyed the pattern of cards. Felka froze, her hand hovering above the space where a card had been. She looked at Skade, incomprehension on her face. As was sometimes the case with Felka, she framed her question as a flat, uninflected statement. ‘Why.’ Listen to me, Felka. You must not do this. You are one of us now. You cannot retreat back into your childhood just because Clavain isn’t here any more. Pathetically, Felka tried to regather the cards. But Skade reached out and grabbed her hand. No. Stop this, Felka. You cannot regress. I won’t allow it . Skade tilted Felka’s head towards her own. This is about more than just Clavain, Felka. I know that he means something to you. But the Mother Nest means more. Clavain was always an outsider. But you are one of us, to the marrow. We need you, Felka. As you are now, not as you were . But when she released her hold, Felka only looked down. Skade stood up and backed away from the cross-legged figure. She had committed a cruel act, she knew. But it was no less than Clavain would have done, had he caught Felka retreating back into her childhood. The Wall was a mindless God to worship, and it sucked her soul into itself, even in memory. Felka began to lay the cards back down again. She pushed Galiana’s casket through the empty warrens of Nightshade . Her armour moved in measured, funereal steps, one cautious pace at a time. With each clangorous footfall, Skade heard the whining of gyroscopes struggling to maintain balance under the new acceleration. The weight of her own skull was a cruel compressive force squeezing down on the upper vertebrae of her truncated spine. Her tongue was an unresponsive mass of sluggish muscle. Her face looked different, the skin tugged down from her cheekbones as if by invisible guylines. Slight distortion of the visual field revealed the effect of the gravity on her eyeballs. Only one-quarter of the ship’s mass remained now. The rest was being suppressed by the field, the bubble of which had now swallowed up half the ship’s length from the stern towards the midpoint. They were sustaining four gees. Skade seldom went into the bubble itself now: the physiological effects, even though buffered by the mechanisms of her armour, were simply too uncomfortable. The bubble lacked a sharply defined edge, but the effects of the field fell off so sharply that they were almost immeasurably small beyond the nominal boundary. The field geometry was not spherically symmetrical, either: there were occlusions and hairpins within it, ventricles and fissures where the effect dropped or rose in interplay with other variables. The strange topology of the machinery itself imposed its own structure on the field, too. When the machinery moved, as it was obliged to, the field changed as well. At other times it seemed to be the field that was making the machinery move. Her technicians only pretended that they understood all that was happening. What they had was a set of rules that told them what would happen under certain conditions. But those rules were valid only in a narrow range of states. They had been happy suppressing half of the ship’s mass, but were much less so now. Occasionally, the delicate quantum-field instrumentation that the techs had positioned elsewhere in the ship registered excursions of the bubble as it momentarily swelled and contracted, engulfing the entire ship. Skade convinced herself that she felt those instants, even though they lasted much less than a microsecond. At two gees of suppression, the excursions had been rare. Now they happened three or four times a day. Skade wheeled the casket into an elevator and rode downship, towards the bubble boundary. She could see the undercurve of Galiana’s jaw through the casket’s viewing window. Her expression was one of infinite calm and composure. Skade was very glad that she had had the presence of mind to bring Galiana with her, even when the mission’s sole scope had been stopping Clavain. At the back of her mind even then she must have suspected that they might have to turn into interstellar space, and that at some point it would be necessary to seek Galiana’s dangerous advice. It had cost her nothing to bring the woman’s frozen corpse aboard; now all she needed was the nerve to consult it. She propelled the casket into a clean white room. Behind her, the door sealed invisibly. The room was full of eggshell-pale machinery that was only truly visible when it moved. The machinery was ancient, lovingly and fearfully tended since the days of Galiana’s earliest experiments on Mars. It had also cost Skade nothing to bring it with her aboard Nightshade . Skade opened Galiana’s casket. She elevated the corpse’s core temperature by fifty millikelvin and then ushered the pale machinery into position. It swung and fluttered around Galiana, never quite touching her skin. Skade stepped back with a stiff whirr of servos. The pale machinery made her uneasy; it always had. There was something deeply unsettling about it, so much so that it had almost never been used. Even on those rare occasions when it had been used, it had done dreadful things to those who dared to open their minds to it. Skade was not about to use the machinery to its fullest capability. Not yet. For now she wished merely to speak to the Wolf, and that required only a subset of the machinery’s functionality, exploiting its extreme isolation and sensitivity, its ability to pluck and amplify the faintest of signals from a churning sea of neural chaos. She would not be attempting coherence coupling unless she had very good reason, and so there was no rational reason for the sense of disquiet Skade felt. But Skade knew what the machinery could do, and that was enough. Skade readied herself. The external indicators showed that Galiana had been warmed enough to wake the Wolf. The machinery was already picking up the familiar constellations of electrical and chemical activity that showed she was beginning to think again. Skade closed her eyes. There was a moment of transition, a perceptual jolt followed by a disorientating sense of rotation. And then she was standing on a flat hard rock just large enough to accommodate her feet. The rock was one of many; they reached into mist all around her, positioned like stepping stones in shallow grey water, linked by sharp, barnacled ridges. It was impossible to see more than fifteen or twenty metres in any direction. The air was cold and damp, scented with brine and the stench of something like rotting seaweed. Skade shivered and pulled her black gown tighter. Beneath it she was
