There was a stifled groan and the horrible sound of someone choking with blood. Three times the outstretched arms shot up convulsively, waving grotesque, stiff-fingered hands in the air. He stabbed him twice more, but the man did not move. Something began to trickle on the floor. He waited for a moment, still pressing the head down. Then he threw the knife on the table, and listened.

He could hear nothing, but the drip, drip on the threadbare carpet. He opened the door and went out on the landing. The house was absolutely quiet. No one was about. For a few seconds he stood bending over the balustrade and peering down into the black seething well of darkness. Then he took out the key and returned to the room, locking himself in as he did so.

The thing was still seated in the chair, straining over the table with bowed head, and humped back, and long fantastic arms. Had it not been for the red jagged tear in the neck and the clotted black pool that was slowly widening on the table, one would have said that the man was simply asleep.