“I believe that some one did.”

Again he gave that quick glance upwards.

“Who was it?”

“I believe that his brother saw him.”

“You believe! What makes you believe?”

“I was told by Turner, the night-porter.”

“When?”

“Last night; or, rather, early this morning. I had occasion to use the lift. Turner told me that he had seen Mr. Lawrence’s brother go up, and that he had just come down again.”

“What time was that?”

“Between two and three.”