"You are not pulling my leg, I suppose, sir?" he asked, a little sourly.
"I should as soon think of tickling a porcupine," Thorndyke answered, with a suave smile.
"Well," rejoined the bewildered detective, "if I didn't know you, sir, I should say you were talking confounded nonsense. Perhaps you wouldn't mind explaining what you mean."
"Supposing," said Thorndyke, "I make it clear to you that those prints on the window-pane were not made by Belfield. Would you still execute the warrant?"
"What do you think?" exclaimed Miller. "Do you suppose we should go into court to have you come and knock the bottom out of our case, like you did in that Hornby affair? By the way, that was a finger-print case too, now I come to think of it," and the superintendent suddenly became thoughtful.
"You have often complained," pursued Thorndyke, "that I have withheld information from you and sprung unexpected evidence on you at the trial. Now I am going to take you into my confidence, and when I have proved to you that this clue of yours is a false one, I shall expect you to let this poor devil Belfield go his way in peace."
The superintendent grunted—a form of utterance that committed him to nothing.