“On the staircase he stopped suddenly, so that I very nearly blundered into him. He stood looking back right into my face and listening. ‘I could have sworn,’ he said. His long hairy hand pulled at his lower lip. His eye went up and down the staircase. Then he grunted and went on up again.

“His hand was on the handle of a door, and then he stopped again with the same puzzled anger on his face. He was becoming aware of the faint sounds of my movements about him. The man must have had diabolically acute hearing. He suddenly flashed into rage. ‘If there’s anyone in this house⁠—’ he cried with an oath, and left the threat unfinished. He put his hand in his pocket, failed to find what he wanted, and rushing past me went blundering noisily and pugnaciously downstairs. But I did not follow him. I sat on the head of the staircase until his return.

“Presently he came up again, still muttering. He opened the door of the room, and before I could enter, slammed it in my face.