Feeling around among the bundles, I turned up a camera and a miniature tape recorder, quality-looking items both. Along with them was a piece of electronic kit I didn't recognise, a flat grey plastic box around six inches long by two-and-a-half wide, with an extendable aerial like a transistor radio but no tuning dial, only a tiny red button that glowed to show it was switched on. I was about to go back and show Andy what I'd found when there was a rustling noise from the front of the truck. A rat after the remains of the food? But it seemed like too much noise for a rat. A man - and whoever had been living here was still around, by the sound of it.