“Was the library door open?”

“Oh, yes.”

“Did you see or hear the last witness at all?”

“No.”

“If anybody had come out of the office while you were in the library, would you have heard it?”

“I think so. Unless they had come out very quietly on purpose.”

“Would you call Mark a hasty-tempered man?”

Cayley considered this carefully before answering.

“Hasty-tempered, yes,” he said. “But not violent-tempered.”

“Was he fairly athletic? Active and quick?”

“Active and quick, yes. Not particularly strong.”