The recording kept going, with the muffled sound of wind against the walls of the lake shed, and then Dean’s voice came again from outside the wooden door.

‘I’ve got the master key ring, Clara.

There’s no need for you to hide in the dark.’

Mr.

Harrison lifted his head from the papers and looked straight at Dean.

‘Dean, how did you get in here?’ my own recorded voice asked from the phone’s speaker.

‘I held on to Daniel’s keys six years ago,’ Dean’s recorded voice answered on the tape.

‘Now hand me the folder.’