The woman followed her gaze. Quickly she began shutting the door. ‘I’ve turned it down, now piss off!’ she said, and for a few seconds Clara stood staring at the closed door in astonishment. She remembered how she’d said, ‘Where’s Luke?’ the day he’d gone missing; the strange, knowing smirk on her face. ‘Open the door!’ she shouted, hammering on it. ‘Open the fucking door right now!’ But the music pounded on and the door remained closed. Eventually, with a cry of frustration, Clara ran back down to her own flat. When had the sweatshirt gone missing? Had it been around the time they were broken into? That sort of fit, she thought. They’d believed nothing had been taken, but … perhaps the reason why the police had no idea how the intruder had got in was because she’d been living amongst them all along. Had she been the one sending the emails?

‘Are you OK?’ Mac asked when she raced back into the flat. ‘You look like you’ve seen a ghost.’

Without replying, she fetched her phone and found DS Anderson’s number. He picked up immediately. ‘Hi, it’s Clara Haynes,’ she said. ‘I have something I need to—’

‘Clara, I’m glad you called. I was about to ring you. We’ve discovered something interesting. How soon can you come to the station?’

9

Cambridgeshire, 1988

I made the phone call one afternoon while Doug was at work, my fingers shaking as I dialled the number. It began to ring and I felt such a rush of panic I almost hung up. Then I heard the click on the other end, the familiar voice saying, ‘Hello?’ and the words stuck in my throat. ‘Hello? Hello?’ a note of impatience now. ‘Who is this, please?’

So strange to hear that voice again after so many years, to know that its owner was standing in the house I’d once known so well. In my mind’s eye I saw the duck-egg blue wallpaper in the hall, the light falling across the floorboards in two vertical slants. For a moment I was back there again, smelling the familiar smell – a mixture of lavender furniture polish and fresh coffee, the bowl of potpourri on the windowsill – hearing the ticking of the clock above the stairs, looking into those familiar eyes that used to cry so much in those days. I swallowed hard and at last, in a whisper, I said, ‘This is Beth Jennings.’

There was absolute silence. ‘Please,’ I begged. ‘Please, please don’t hang up. I need to see you. I need to speak to you.’ And then I burst into tears. ‘Can we meet?’

The voice was ice cold, tinged with fear. ‘Absolutely not. We made a deal. You promised.’