She wound down with a few stretching exercises, until her body tingled comfortably. She couldn’t remember when she had eaten last, and there was no food in the flat. But fasting was good for the body. It made her stomach feel tight and her brain active. She had found that eating meals caused her digestive system to drain her energy. Fry examined herself in the mirror. There was no injury to be seen on her own face. But it didn’t mean there was no scar. It meant only that it was the sort of scar that nobody else could see, that no one else could tell the way she was marked. That was how she was so much luckier than Maggie Crew. So lucky.

Like Maggie, unwilling to reveal her disfigurement to the gaze of a stranger, Fry knew the bitter taste of resentment against someone who knew your innermost secrets. She had felt like telling Maggie that she ought to get out and face people. But surely it was equally futile to try to avoid the person you resented.

‘What an idiot,’ she said, then mentally gave herself a reprimand for talking to herself. But she had meant it for Ben Cooper really, thinking of him buddying up so cosily with Todd Weenink. In the end, they were two of a kind. Besides, she thought, even Ben Cooper didn’t know all her secrets.

Fry drove into Sheffield, gradually relaxing as the vast sprawl of houses and factories closed around her, shielding her from the dark hills she was leaving behind in Derbyshire. She had first travelled into the city when she needed to find a martial arts centre away from Edendale, where the dojo used by Ben Cooper had become a no-go zone. Seeing the city streets then had reminded her exactly why she had come to this area.

She went straight into the centre of the city, circled the ring road and parked in a multi-storey car park near one of the main shopping streets, The Moor. Then she walked back towards the transport interchange at the bottom of the hill and waited for the carriages of a Supertram to pass before crossing the road.

The old railway arches at this end of the city would disappear when modernization reached them. But for now, they were home to a small group of people. No, not a group – they were a series of individuals. They lay in sleeping bags, under filthy blankets and cardboard boxes, huddled close together, yet still in their own completely separate worlds, not speaking to each other or acknowledging anyone else at all. They had isolated themselves for their own protection. Fry knew that the human mind was capable of shutting out many things when necessary, even the close proximity of other people.