It was very quiet at that point. There seemed to be nobody about. Behind him, far down the long, wide terrace, he heard slow, measured steps--that, of course, was a policeman on his beat. But beyond the subdued murmur of the traffic in the Bayswater Road in one direction and in Bishop's Road, Viner heard nothing but those measured steps. And after listening to them for a minute, he turned into the passage out of which the young man had just rushed so unceremoniously. There was just one lamp in that passage--an old-fashioned affair, fixed against the wall, halfway down. It threw but little light on its surroundings. Those surroundings were ordinary enough. The passage itself was about thirty yards in length. It was inclosed on each-side by old brick walls, so old that the brick had grown black with age and smoke. These walls were some fifteen feet in height; here and there they were pierced by doors--the doors of the yards at the rear of the big houses on either side. The doors were set flush with the walls--Viner, who often walked through that passage at night, and who had something of a whimsical fancy, had thought more than once that after nightfall the doors looked as if they had never been opened, never shut. There was an air of queer, cloistral or prisonlike security in their very look. They were all shut now, as he paced down the passage, as lonely a place at that hour as you could find in all London. It was queer, he reflected, that he scarcely ever remembered meeting anybody in that passage. And then he suddenly paused, pulling himself up with a strange consciousness that at last he was to meet something. Beneath the feeble light of the one lamp Viner saw a man. Not a man walking, or standing still, or leaning against the wall, but lying full length across the flagged pavement, motionless--so motionless that at the end of the first moment of surprise, Viner felt sure that he was in the presence of death. And then he stole nearer, listening, and looked down, and drawing his match-box from his pocket added the flash of a match to the poor rays from above. Then he saw white linen, and a bloodstain slowly spreading over its glossy surface. CHAPTER II NUMBER SEVEN IN THE SQUARE