Mr. Ludgrove looked him straight in the face. “Inspector Whyland,” he said gravely, “I should like you fully to realize my position. Many of the inhabitants of this part of London believe, rightly or wrongly, that my experience of the world is greater than theirs. Consequently they frequently seek my advice upon the most personal and intimate matters. I have been the recipient of many confidences, which it has been my invariable rule never to mention to a third person. Dick Colburn has consulted me more than once, and it is only because I believe it to be in his interest that I am prepared to break my rule in his case.”

“I fully appreciate your motives, Mr. Ludgrove,” replied the Inspector. “I will make no use of anything you care to tell me without your permission.”