So he sat and listened, as outside the moon rose and the breeze dropped. She broke off briefly to throw a match on the fire and turn on the standard lamp with its tatty parchment shade, but soon she continued, ordering her thoughts, reaching conclusions, planning future actions. During the team briefings she used the whiteboard to make her points clear, but Joe could see that she had no need of written notes or charts. It was all in her head; all the links and apparent coincidences seemed fixed in her mind.

And she spoke about the dead woman as if she’d known her. ‘Jenny Lister. The way I see it, she was a proud woman. That was what motivated her. She was good all right: a good mother, a good social worker, a good boss. A good-looker too for her age. We’ve heard that from all the people who knew her. But she thought she was a bit better than everyone else. Clever enough not to show it, but deep down that was what she believed. That’s what the planned book was all about. She thought she had something to teach the world about compassion.’ Vera looked up from her beer. ‘If I’d known her, she’d have got right up my nose. I can’t stand perfect people. And she didn’t have many friends, did she? Not real friends. There’s that teacher, but she was more like an admirer than a friend, and Jenny didn’t confide much in her. She just threw out a few hints to make herself interesting.’

Joe said nothing. When Vera was in full flow it was best to let her get on with it. The inspector continued. ‘So why was she murdered? And why in such an elaborate way? You don’t strangle someone just because they get on your tits. And if you want to kill, you choose somewhere private. Not the swimming pool in a flash hotel, where anyone could walk in on you at any minute. This looks like a game to me, a show. And which of our suspects makes the best showman?’

Most of Vera’s questions were rhetorical, but this time, it seemed, she expected an answer.

‘Well? Are you falling asleep here? Am I talking to myself?’

‘Danny Shaw?’ His response was tentative and he was ashamed of that. She always made him feel like an eight-year-old desperate not to make a fool of himself in front of the teacher.