One

'You're not my fucking captain,' Nance said.

'I refer you to the answer I gave some moments ago,' Jane said. He turned to Brendan and Angela. 'You with me? I'm sorry, I don't care all that much one way or the other. But I have to crack on.'

Brendan nodded. 'I understand,' he said. 'We're with you, and – I mean it – if you feel we're keeping you back, you go on and floor it. We're better off already for knowing you. You got us off our arses. We'll be all right.'

Chris and Nance went with them, but not without a volley of tuts and hisses and sighs. Jane heard Nance say something to Chris about sleeping out in the open again over her dead body. He wrestled with the urge to say that at least it would keep the damp out of Chris's clothes.

The griping stopped eventually. The slog of the journey and bodies becoming visible in the fields like soldiers downed by gunfire worked as an excellent conversation stopper. Angela improved steadily throughout the day. He saw in her the woman she must have been before emphysema dragged everything south. Some people, no matter how old they became, carried within them that essence of youth. It was like astonishment, Jane thought. A way of looking at the world that was all wow. Such people never became bitter or cynical.

They spent that night in a farmhouse. Bodies in the kitchen. Everyone had a bed to themselves. Happy, Chris? Jane found a new rucksack. Brendan found some maps of the north-east, but they couldn't work out how far they had come. It didn't matter. Knowing you were twenty miles or 120 miles from Newcastle didn't detract from having to cover that distance. Ignorance was bliss, in a way.

The days tumbled into one another. Jane couldn't be sure if it had been three or four or five since Bamburgh. Angela's breathing began to become more laboured, no matter how much Ventolin she took. But at least the road wasn't so bad and Brendan could push her in the wheelchair for fair stretches before she had to get out to circumnavigate a damaged section. Eventually there seemed to be more and more villages. Jane could sense a picking-up of pace. It was as though they were going slightly downhill. Conversation became lighter. Angela laughed, a wonderful sound. Even Nance was more gregarious.

The last night they spent before entering the outskirts of Newcastle, Jane awoke to the sound of screeching. He thought he'd dragged the sound with him out of a dream, but after a few seconds of hard breathing, and staring through a window opaque with heat discoloration, he heard it again and knew that it was outside, that it was following them. He sat up and pulled on his coat. Everyone else was asleep. He went downstairs and stood by the front door, his ear to the wood. The cry came at regular intervals, as though it was from the kind of creature that targeted its prey via sonic rebounds. He opened the door a little and felt the wind try to muscle it wide. He found himself trying to overlay the sound of Stanley crying over this, to try to make the sound that of his boy, so that he could do something. But it was nonsense. He remembered waking in the night as cats yowled in the street, thinking that it was a baby in trouble, but this sound was at the same time too bestial and too intelligent for that.

It was a hawk of some kind. Or an eagle. Or an owl, even. He wished he could differentiate, but he had never been much of a twitcher. Stopper had been a member of the RSPB. He always took his binoculars with him wherever he went. 'Goes a skua,' he'd say one day and you'd look up and see this shape in the distant sky. A while later: 'Goes a guillemot.' And there didn't seem to be an awful lot of difference.

Jane thought about going outside to see if he could spot it, but it was too dark. He'd only get lost and then he'd be in big trouble. He closed the door. Nothing had survived the Event, as far as he was aware, apart from a handful of people who had been shielded from its impact. Surely all the birds would have been wiped out. Which meant that whatever was making the noise was a human survivor. Or an approximation. What was it? An invitation or a warning? An all-clear?