She ends the call and explains to Lisa that she has to deal with an urgent matter. She takes Lisa’s phone number and promises to be in touch.

*

Mats and Agnes are sitting on the top step playing with Milo. Agnes should of course be in school, but Anna decides to ignore that for now. As soon as Anna gets out of the car, Mats stands up and tugs at the hem of his jacket, looking embarrassed.

‘Agnes said you wanted to talk to me?’

He doesn’t answer; instead, he glances up at the roof of  Tabor.

Agnes stands up too and takes him gently by the arm.

‘Mats was wondering if he could have a look at the mural, Mum.’

Anna raises her eyebrows. ‘I got the impression we were going to talk about . . .’

Agnes flashes her an angry glance and shakes her head slightly.

‘Of course, Mats,’ Anna says, even though she has no idea what’s going on.

All three of them make their way to the chapel. When Mats isn’t looking, Anna frowns at her daughter, but to no avail.

The big man stops a couple of metres away from the painting, and admires it in silence. After a while his expression grows troubled.

‘That’s the quarry,’ he murmurs to himself. ‘But where is he? I can’t find him.’

Agnes has placed her photographic lamps at each end of the wall, pointing at the mural. She goes over to one of them and presses a button. The light brings out Simon Vidje’s body in the dark water.

Mats gasps and steps back, raises his hand towards his eyes as if to protect himself from what he is seeing.

Anna remembers what he said – that the water in the quarry pool was freezing cold, that Carina’s lips were blue. This is the right moment to ask the question that’s been bothering her.

‘Were you there, Mats?’ she says quietly. ‘Were you at the quarry that evening?’

He nods slowly, tears trickling down his cheeks.

‘To spy on Carina Pedersen?’

He nods again, wiping away the tears with the back of his hand. ‘She was so beautiful. Long, fair hair, almost like an angel.’ He blushes.

‘Did the others know you were there?’

‘No. Marie always chased me away if she spotted me. I had to creep around. I hid in the forest. There’s a place where you can see nearly everything with a good pair of binoculars.’

‘How . . .’ she tries to contain her eagerness, ‘how long were you there, Mats?’

‘Until it started raining. Until they . . .’ He falls silent, shuffles his feet, looks at the mural again.

‘Until they did what?’ Anna prompts him, as gently as she can.

‘Until they started quarrelling,’ he mumbles.

‘Who?’ Agnes can’t suppress her curiosity.

Mats spreads his hands. ‘All of them – Alex, Marie, Carina, Bruno. It was just after the motorbike had left. Then there was a fight.’