‘He may use the Pale Child as an excuse,’ Jai said. ‘A way to feel that the killing isn’t his fault. The Pale Child saw them and then they died. A way for him to reconcile his image of himself with being a killer.’

This was running away from me. ‘I don’t see his personality like that,’ I said. I’d been wrong, but surely not that wrong? They were making him sound like a serial killer.

Craig let out a soft snort. ‘Your poncy psychology degree letting you down this time?’

I pictured myself picking up my laptop and smashing it on his head. I settled for saying, ‘If you can’t contribute positively, please keep your mouth shut.’

Fiona said, ‘All this doesn’t make him the killer. He might just feel guilty about his brother’s death and about Lucas, the boy who died in the car crash, and has become obsessed with the Pale Child because they both supposedly saw her before they died.’

Craig sighed. ‘No, the pictures of the Pale Child don’t prove Daniel Twigg’s the killer. But luckily, we have a shitload of forensic evidence that does, plus the fact that he’s buggered off. It couldn’t be much clearer. And more than likely he killed Gary too. So now we need to find the bastard before anyone else dies.’

‘It does fit the facts,’ Jai said. ‘Are we warning the public?’

‘We are indeed,’ I said. ‘We have a huge operation looking for him and a press release going out shortly.’

I took another look at the photographs of the caravan’s interior. ‘What’s that one?’ It looked like a map. Gritton woods? A spot was marked with an ‘x’ and there was a tiny image of a gravestone. On it were the words, ‘1999 RIP’.

‘Another murder?’ Jai said. ‘That’s clearly a grave.’

‘Bex was raped in 1999,’ I said. ‘And Lucas died in a car crash that same night. Maybe it’s about him.’

‘But why show a gravestone in the woods?’ Fiona said. ‘Lucas wouldn’t have been buried in the woods.’

‘We’ll investigate,’ I said. ‘But the map’s pretty imprecise. We can’t justify the resources to dig up the whole of the woods.’