‘I’ve seen you looking better, Ms Miranda,’ I replied.

She seemed to gaze at me for some moments, then moved her hips left and right, and shambled off to follow the first nightwalker along the corridor and back beyond the periphery of the light. She and Tangiers wore matching overalls and were either not hungry or had not yet discovered cannibalism.

‘When I love, I love,’ came Miranda’s voice from the darkness, then silence. I moved off down the corridor, now guided by nothing more than the memory of Webster’s dream. I found room 106, paused, then pushed open the door. The room had the same pine linenfold panelling, the same single bay window with a fire escape, the same large chimney. On the wall was a lighter patch of faded wallpaper in the shape of a star – the place where the wall-clock had once hung, again, as in Charles’ dream.

I felt hot and sweaty and confused and tired but half suspected, despite all the evidence to the contrary, that all of this could still be explained as my memory unfolding simultaneously as I walked, like a locomotive laying its own tracks. But there was one test I could perform, something that would decide once and for all if I was dreaming my own dreams, or dreaming someone else’s.

I stepped forward and reached up the chimney as far as I could. At first I felt nothing, but then the lip of a ledge, and inside that my fingers touched something that yielded, and after some squirming and stretching – Webster had been almost four inches taller than me – I removed a cylindrical cardboard tube that was dusty and stained. I opened the tube and pulled out a shiny blue-black hard wax cylinder, the fine grooves shining in the light. I stared at it for a moment, not knowing what to think. Happy or sad? Didn’t know. All I knew was that it had been placed there by Charles Webster, was valuable enough for HiberTech to destroy six people for, and Don Hector, through Charles, had been trying to get it out to Kiki and RealSleep for at least three years.