“Still no sign?” he said, joining her on the top step. He was wearing his plastic raincoat with the unpleasant, acid smell. With the heel of his shoe he pressed down on the edge of a flagstone beside the foot scraper and a broken corner of it lifted, and she saw the dull gleam of two keys on a key ring underneath.

The mist had penetrated the hall, and a faint swathe of it hung motionless like ectoplasm on the stairs. They climbed in silence to the second floor. Phoebe had trod these stairs countless times, but suddenly she felt like an intruder. She had not noticed before how worn the carpet was along the outer edge of each step or how the stair rods were tarnished, and missing at intervals. At the door to April’s flat they hesitated, exchanging a look. Jimmy rapped softly with his knuckles. They waited a moment, but no sound came from within. “Well?” he whispered. “Shall we risk it?”

The harsh sound of the key gouging into the lock made her flinch.

She did not know what she had expected to find inside, but of course there was nothing amiss, or nothing that she could see, anyway. April was not the tidiest person in the world, and the clutter in the place was familiar, and reassuring: how could anything really bad have happened to someone who had washed those nylons and left them draped there over the fireguard in front of the grate? And look at that cup and saucer on the coffee table- the rim of the cup marked with a crescent of scarlet lipstick- and that half-consumed packet of Marietta biscuits, so ordinary, so homely. All the same, there was something unignorable in the atmosphere, something tensed and watchful and sullen, as if their presence were being registered, and resented.

“Now what?” she said.