Perez caught Sandy’s eye again and saw pure terror. This wasn’t what he’d had in mind at all. He’d imagined going along with Perez for the ride, a night in a London hotel on expenses, a bit of sightseeing, not being left with full responsibility for the interview, not having the wrath of the Fiscal on him if he made a mess of things. ‘Go and get your bag packed. I’ll call in to Utra when I’ve done here and we’ll discuss the approach you should take.’

Sandy scuttled away.

Perez walked with the Fiscal to her car. ‘I really don’t think that was one of your most sensible decisions,’ she said sharply. ‘I’m not sure he’ll even get as far as London without a minder.’

‘I think I’ve under-estimated him in the past. He’s shown a lot of sensitivity on this inquiry. Besides, Gwen James will be good at handling questions from sophisticated interviewers. She does it all the time in the Commons and with the media. I hope Sandy’s simplicity will get under her guard.’

The Fiscal looked at him as if she didn’t believe a word, as if Perez were mentally ill himself, but said nothing.

News of Hattie’s death had got out around the community, as Perez had known it would. A small group of onlookers had gathered at the gate, drawn by the drama rather than by any sense of involvement with the dead woman. She was one of the lasses working on the dig; that was all. Even Evelyn only thought of her as part of the project. Mima was probably the only person on the island to have really known her.

When the Fiscal drove off the people started to drift away and Perez saw Sophie on the edge of the group.

‘I’m sorry,’ he said. He could see that she’d been crying. She wasn’t the sort to cry easily and he was surprised by the display of emotion. He watched the other people walk back to the road. Most of the islanders had cars there. Jackie Clouston scurried back on foot to her mansion on the hill. Had she left Andrew alone to check what was going on?

Sophie sat on the grass beside the track. She was wearing combat trousers and a university sweatshirt, walkers’ sandals. Her toes were wide and brown. ‘I feel dreadful. There I was slagging her off yesterday, and all the time she was planning to kill herself.’

‘You had no idea anything like that was in her mind?’ He sat beside her.

There was a pause. Perez thought she was preparing to say something significant, but she seemed to decide against confiding in him and only shook her head. ‘I never knew what she was thinking at all.’