Almost at once, it seemed to him, he was fighting away, demanding drowsily:

"What's the matter? Leave me alone."

He heard Graham's voice, unnaturally subdued and anxious.

"What are you doing, Bobby?"

Then Bobby knew he was no longer in his bed, that he stood instead in a cold place; and the meaning of his position came with a rush of sick terror.

"Get hold of yourself," Graham said. "Come back."

Bobby opened his eyes. He was in the upper hall at the head of the stairs. Unconsciously he had been about to creep quietly down, perhaps to the library. Graham had awakened him. It seemed to offer the answer to everything. It seemed to give outline to a monstrous familiar that drowned his real self in the black pit while it conducted his body to the commission of unspeakable crimes.

He lurched into the bedroom and sat shivering on the bed. Graham entered and quietly closed the door.

"What time is it?" Bobby asked hoarsely.

"Half-past two. I don't think Robinson was aroused."