The dormitory had the stuffy, sweaty smell of men living in close proximity, even though two of the beds were empty and the men were sleeping at opposite ends of the room. Jane straightened sheets and folded duvets, cleaned the sink, opened the sash window just a little to let in fresh air. She wondered if Perez had searched in here. Would that be the normal procedure in a murder investigation? Surely he’d have to get permission first and he certainly hadn’t asked her if he could look round her room. She thought she would have known if he’d been there, looking through her drawers, prying in her things. Again she felt the investigation as a sort of challenge, an impersonal puzzle that had nothing to do with the reality of the murdered Angela. Jane had always been competitive and now she wanted to pit her intelligence against that of Perez, to come up with the identity of the killer before he did. She’d become an amateur sleuth, like a character in the detective stories she’d read as a child.

Of course it was presumptuous to think she might succeed ahead of the police, but she could get away with behaviour that would be impossible for the inspector. Who would know, for example, if she looked through guests’ personal belongings? She had every right to be in their rooms.

The chest of drawers next to Dougie’s bed contained underwear, a couple of folded T-shirts and a pile of socks. On top, next to a bottle of whisky that was three-quarters empty, there was a field identification guide to the birds of America. This, it seemed, was Dougie’s only bedtime reading. Hugh’s possessions were more interesting. They were still piled in his rucksack and in such an untidy and random way that he would never tell that anyone had been looking. A torn envelope file made of pink card had been slipped end on by the side of a tangle of clothes. Jane pulled it out. There was a moment’s hesitation before she opened it. Really, what right had she to pry? But by now she was so curious that it was impossible for her to replace it before reading the contents. Besides, she had a sense that here, in the lighthouse, they were living outside the normal rules. She knew Hugh would be on his way down the island for his interview with Perez. She wouldn’t be disturbed.