“I was aware that you had written a book upon the subject.” “Have you read the book?” “No.” “Dear me, this becomes more and more difficult for me to understand! You are a connoisseur and collector with a very valuable piece in your collection, and yet you have never troubled to consult the one book which would have told you of the real meaning and value of what you held. How do you explain that?” “I am a very busy man. I am a doctor in practice.” “That is no answer. If a man has a hobby he follows it up, whatever his other pursuits may be. You said in your note that you were a connoisseur.” “So I am.” “Might I ask you a few questions to test you? I am obliged to tell you, Doctor—if you are indeed a doctor—that the incident becomes more and more suspicious. I would ask you what do