‘I’m sure it’s past the statute of limitations by now, but Joe and that . . .’ she waves her e-cigarette around, ‘whore he had with him supplied us with weed.’ She pauses, takes another drag. ‘I know you shouldn’t say that kind of thing about other women.’ She rolls her eyes. ‘God knows, I’ve been called all sorts. What I mean is that Tina, or whatever her name was, looked like one of those trashy groupie types with torn jeans and back-combed hair. The kind all the boys were crazy for back in the ’80s.’

‘And why was Joe a complete shit?’ Jens asks, earning himself yet another smile.

‘Because he got me drunk and high, then came on to me in one of the tents. Fortunately, Alex dealt with him. Sent Joe and his . . . sister packing.’

‘Joe and Tanya weren’t siblings,’ Anna informs her.

‘No?’ Caia raises a well-plucked eyebrow.

‘No. They actually had a child together.’

‘Well, there you go. I can’t say I’m surprised. It just goes to show how messed up they were – pretending to be brother and sister so they could both try it on with someone else. Totally fucked-up!’ Her hand hovers over the phone, as if it’s already time to check again.

‘You don’t have children,’ Anna says, without really knowing why. Maybe Caia’s dependence on her phone reminds her of Agnes.

Caia shakes her head. ‘No, kids aren’t my thing. I had to be a mother to my younger siblings when I was growing up – that was enough for me.’

Jens is keen to get back to the evening in question. ‘So, what happened after Joe and Tanya left?’

‘It started pouring with rain. The fire went out, and we got into our tents pretty quickly. Marie and I were sharing. I woke up in the morning when she went out to pee, and a couple of minutes later I heard her screaming. I ran out and almost bumped into Bruno and Alex – then we saw Simon in the water.’ She lowers her e-cigarette, her eyes filled with sorrow. ‘I’ll never forget it. None of us will.’

There is a brief silence, then Jens asks: ‘What did you do after the party?’

‘After the fight I drove straight home,’ Caia replies without hesitation. ‘I was going to leave early anyhow. We had a concert at the Dunker art centre on the Sunday. I’m on the board and I try to go as often as I can.’

‘Did you go alone?’

Caia takes one last drag, then puts away the e-cigarette. Her fingers unconsciously reach for the phone again.