‘So did I,’ Bryn said, ‘at the time. But no, I don’t think that was the reason she didn’t come home. She didn’t suffer the sort of abuse you’re thinking about anyway. She had nothing to bring her back. There was no more to it than that. The old man’s turned into a bitter old soak. He props up the bar of the Lamb from teatime to closing, talking to everyone who’ll listen about his famous, ungrateful daughter. She had no real friends here. She probably just put the place out of her mind.’

‘How did he take the news of her death?’

‘I went to see him as soon as I heard. It was about lunchtime, so at least he was almost sober. He lives in the same house where he’d brought up the girl. An ugly sort of bungalow on the edge of the village. It must have been built in the fifties – you’d never get planning permission for it now. Lily Llewellyn goes in every now and again to clean, but you’d never think it. Such a mess. He can’t throw anything away. Piles of newspapers all over the living room. And he still seems to be carrying out experiments. The kitchen bench is covered with jars and test tubes, with stuff growing inside. There’s a microscope. No telly. They never had a telly.’

Perez thought if Sandy Wilson were doing this interview he’d be hurrying Bryn along, urging him to come to the point. But Perez was grateful for the detail. He could see the house in his head, was with Bryn when he stepped into the room, cleared a seat so he could sit down, felt the stickiness underfoot.

‘I just told him straight,’ Bryn said. ‘“Angela’s dead. It seems as if she was murdered.” He sat there looking at me. He was a big man in his day and he’s still tall, though he’s lost a lot of weight. Then he started crying. “I thought one day she’d understand what I’d done for her,” he said. “I thought she’d be grateful. Now she won’t have the chance.” He’d always been a hard man. No compromise with him. Angela was his project, after he gave up the university. It made me a bit queasy watching the tears. But I had the feeling he was crying for himself and not for her.’

‘Didn’t he want any details?’ Perez would have expected a scientist to need to know the facts of his daughter’s death. He had brought his child up to be rational. Even in old age, wouldn’t he need the facts to hang on to?

Bryn hesitated for a moment. ‘He just said he wasn’t surprised. “She wasn’t the sort to live a quiet and easy life. She was her father’s daughter, after all.”’