I'm not sure what form I expected the threat to take; a police car actually stopping outside, a powerfully built black man darting up the drive? I had several dreams of siege, in which the house became a frail slatted box, shadowy and exquisite within, the walls all cracked and bleached louvres which fell to powder as one brushed against them. In one dream Arthur and I were there, and others, old school friends, a gaggle of black kids from the Shaft, my grandfather tearful and hopeless. We knew we had no chance of surviving the violence that surrounded us, closing in fast, and I was gripped by a nauseating terror. I woke up in the certain knowledge that I was about to die: the bedsprings were ticking from the sprinting vehemence of my heartbeat. I didn't dare go back to sleep and after a while sat up and read, while Arthur slept deeply beside me. It took days to lose the mood of the dream, and its power to prickle my scalp. The neighbourhood seemed eerily impregnated with it, and its passing made possible a new confidence, as if a sentence had been lifted.