‘You,’ I say, but I can’t get any more words out.

She was troubled but not dangerous. There was something she said, something that didn’t quite fit. When she was talking about her controlling boyfriend, she said she loved him. When I probed her about it she said: You have to love your family, though.

Cormac swings the camera back to himself now. ‘She’s a very good gamer as well,’ he says.

Xanthe is a good gamer. Xanthe is Raze. A horn screams. I glance up, find I’ve veered into another lane in front of a truck. I swing back, just in time. The driver is still leaning on the horn. The interior of the car is suddenly hot.

‘Careful on the road,’ he says with a laugh.

‘Xanthe,’ I say. ‘Listen to me, you don’t have to do this.’

‘She can’t hear you,’ Cormac says. ‘And even if she could, she wouldn’t listen. She’s just as prepared to kill her as I am, so don’t think she won’t. She did such a good job setting the fires, particularly the one at your home.’

‘No,’ I say. ‘No, you’re lying. It wasn’t her.’

‘It runs in the family,’ he says. He was always talking about his sister too. Everything sharpens into focus now. Xanthe is his sister. ‘She wasn’t quite so good at acting as me, so we decided that when she was in your office she acted extra unreliable. We wanted to show you a pathological liar, a borderline. That made it easier. She recorded all your sessions for me to listen to later, with all her slips of the tongue. When she acknowledged that Jacob was her family, Jacob being me, I realised we had to cut her appointments off. I made poor, unstable Xanthe disappear. She had good ideas, though: wearing the same boots as Joe when she set the fires. Genius.’ He laughs now. ‘You should have seen her stomping around in those things.’ He pauses. ‘You’re coming up to an intersection. Turn right towards Mt Dandenong at the lights.’

‘Towards Mt Dandenong?’ I say, as loud as I dare, so that Gabe or whoever is on the other end of Evan’s phone will hear.

‘Did I misspeak?’

‘No,’ I say, turning right. ‘So what about Joe?’

‘It was Xanthe’s idea. Did he ever tell you about the time he found a phone on the train?’

‘Yes,’ I say, failing to see where he might be going with this.