"I want your own opinion; I don't want what other people said. You were with him for three years and kept a pretty close watch on him, I've no doubt."

"Speaking confidentially, I might say that I think he was," said Hill.

He glanced apprehensively behind him as if afraid of the dead man appearing at the door to rebuke him for presuming to speak ill of him.

"I thought as much," said the inspector. "Have you any idea why he came down from Scotland?"

"No, sir."

"Well, that will do for the present, Field. If I want you again I'll send for you."

"Thank you, sir. May I ask a question, sir?"

"What is it?"

"You don't really think I had anything to do with it, sir?"

"I'm not here, Field, to tell you what I think. This much I will say: If I find you have tried to deceive me in any way it will be a bad day for you."