One

Word is that there are Skinners drifting south from Camden and the parks.'

'Well, then, that's good.'

'What do they want with us?' she asked him, her voice suddenly pressured, cracking. He was reminded of the Ceto; his mates in the chamber all trying to equalise as the pressure piled against their sinuses. Squeezing their noses and blowing, trying to yawn. The first sign of the heliox mix pulling their voices into falsetto.

She didn't mean us as in everyone, she meant the women. He knew that. Why did the Skinners choose to hunt the men but abduct the women? Together they'd watched it in the early weeks after their arrival. They'd seen a group of girls pulled from the ticket barriers at Shadwell and dragged away screaming by things that had once been men but whose skin was now swollen with the knuckles and ribs of something that didn't quite fit inside. Black joke eyes staring out of dead holes of bone, a mimic with cheap props. They'd been strangled almost to senselessness, then flung on to the backs of tethered, invaded okapi. Steam had come off the frayed bodies: they'd looked like ghosts fading into the night. Nobody had said anything at the time. People still didn't. You could posit all you liked, but it came down to the obvious in the end, and the obvious, if it was so repellent, so horrifying, was always ignored, concealed, skirted. He could answer her right now, but the question was a squeak from the safety valve. She didn't really want to hear it. She knew what was going on.

'I thought maybe we could walk down to the river, find Aidan, go on up to the power station, bed down there.'

'It's late. And it's a long way. We have beds here. We can go up to the research rooms if you want.'

It wasn't just that he was feeling cabin fever in a place that made Jane uncomfortable and nervous. He didn't like Aidan going off on his own even though the river was generally safe and he was among friends. And Jane still had motion in his joints. He wanted to be on the street, tracking down the gossip about the raft. He didn't like Fielding, but he was sorry to hear of his violent death. The threat of it was like a storm cloud that had slipped inside the building and was clinging to the ceiling, getting fat, building up the pressure on everyone beneath it.

Becky's hands on his shoulders. He thumbed off the bicycle mask and the goggles and stood blinking in the candlelit room. She gave him a little half-smile; she knew she'd won. She slipped a hand into his. 'Come on,' she said.

They took the steps up through the oak-panelled stairwell and pushed through a door into an area filled with old bookcases. Some had collapsed against each other and had not been righted. Magazine racks were loaded with newspapers and glossies bloated and dulled by time and water that had coursed down the walls from a crack in the roof. Ranks of PCs with shattered screens sat on tables cluttered with cups and mugs and soup bowls.

A circular window in the dome of the library was filling with shade. Candlelight flickered from the far end of the room. They bypassed the loans desk and headed for the light. Sleeping bags were wadded into the gaps between the bookcases. There was a silence of deep sleep, the kind of sleep that punched people unconscious as soon as their head hit the pillow, the result of little food and much exertion.

There were two empty sleeping bags in the corner. Becky's bag and coat marked her territory. She undressed quickly and slipped into her bag, pulling the corner up over her body, but not before he saw the rippled sandbar of her ribs, the deep shadow of her stomach. She patted the space next to her. Jane smiled. He looked out at the Marylebone Road as it sought the heart of the city. Figures drifted across it or along it. A fog was rising, or the clouds were sinking. Everything grey. Somebody screamed, far away, and he almost didn't register it. You got to a point where you didn't hear the tragedies unfolding around you. Wasn't it always this way?

Becky unhooked her bra and he touched her breasts haltingly, as if the lambent light around them was being manufactured from within. They made love quietly, although Jane doubted whether anybody would have been roused had they given their fucking full volume. Jane withdrew at the moment of his climax and she held his penis as he came on her stomach. He didn't look. She wiped herself clean and fell asleep almost immediately, her head on his chest, the smell of their sex rising from the sleeping bags whenever she moved. Bitter thoughts of Cherry. A shameful wish that she might walk in on them like this.

He raised himself up slightly and balled a coat and put it under his neck. He pulled a dead mobile phone from his pocket and dialled the number.

'Hi, Stan,' he said. 'What you doing?'

'Colouring in. I done a Batman but it got boring because he's only blue and grey.'

'What did you have for dinner?'

'Pasta. And parmigiano.'

Jane laughed. He'd taught Stanley to say 'parmigiano' at a very early age, with a cartoon Italian accent, and it always tickled him when he said it.

'You had a bath? Brushed your teeth?'

'Roger, roger.'

'Sleep tight, then. See you soon.'

'Night, Dad.'

Jane was about to press the end-call button when a sharp bill shot out of the casing in an explosion of brushed steel and embedded itself in his cheek. He smelled the cloaca of the bird, and the carrion of what it had last dined upon. But he was so tired, so exhausted, that the nightmare could not impinge. He slept, looking down on himself, disinterested, as the bill stripped away the flesh of his face to reveal a thin white bowl filled with dust.

18. RAGCHEW

In the early morning the tiger broke down the library door and killed two men who tried to stop it from cantering up the stairs. Jane saw it happen. He'd been coming down to use the toilet and to check that Aidan had made it back from the river. The tiger swung its great spoiling head his way as Jane pushed his own scent down the stairs before him. There was a frozen moment, almost as if the air pressure they each produced had caused them to be still as it collided. Jane backed off; the tiger approached. Blood from the broken men in the foyer had created large fans across the floor. It appeared solid; you might lift up an edge and it would all follow, like a confection set to dry on baking parchment.

The tiger moved more circumspectly now that its quarry was in sight. Its bluster was spent; perhaps it was exhausted after expending so much energy on the door and the men. Perhaps it was wary of Jane, who had bested it once already. He heard movement behind him and Becky's voice: 'Oh.' She kept the door open for him and it was only as they were pulling down filing cabinets to block the entrance that the tiger charged. It hit the swing doors and half a dozen squares of glass punched out of their frames onto Jane and Becky's backs as they shouldered more furniture in front of the door. A paw came through, stinking of shit and rot, and almost swiped off Jane's face; he felt the wind from it move the hair of his beard. The other sleepers were up now, and hurriedly grabbing the things they valued most: food in the main, but also thick winter coats, old stained albums of photographs. They made their way silently to the stairs, veterans of any number of emergency evacuations in the past. Nobody screamed any more. Too tired. Too knowing.

'I shouldn't have come here,' Jane said. 'I put everybody at risk.'

'Shush,' Becky said. 'We can do all that later.'

They hurried to the small lift at the back of the room. During the years it had worked it had taken three people at most, and clanked as if about to disintegrate into a welter of hinges and screws. Jane had used it once, then stuck to the stairs. Now it had been hollowed out; a rope ladder hanging from the defunct overhead sheave. They descended it quickly in darkness, Becky going first. At the bottom they had to lever open the doors with a crowbar that was hanging by wire on the wall. They burst out through the fire doors into Salisbury Place and did not stop running until they were out of breath, leaning on each other. Spit dangled from Jane's throat, quicksilver mined from the pits of his lungs. It was so cold he felt as though he was running on the stumps of his shin bones.

'We should find Aidan,' Becky said at last.

'Maybe he'll be at Plessey's. It's worth a look. I can't think where else he might be.'

It was rare to see women on the streets, unless they were part of some captured chain being led off to the Western Avenue. Rumours filtered through that they kept the women in Wembley Stadium, but nobody had ever travelled that way to check. There were some zones that were off-limits because of the sheer weight of numbers. Any reconnaissance party or rescue squad would be decimated before they reached Willesden. Jane remembered, though, around three or four years ago, a woman who came limping down the A40, naked, her skin torn like strips