"I prefer not to reply to that question."
"Very good, but answer me this one. Where did you obtain this leather case, and what does it contain?" As he said this the detective picked up the case and held it before Mr. Mitchel's eyes. That gentleman was evidently confused for a moment, but finally answered:
"It contains some jewels."
"Jewels? That is what I thought. May I examine them?"
"Not with my permission."
"Then I must do so without," and with a quick movement the case lay open on the table. It was lined with black satin, and contained gems similar to those described in the paper found in the dead woman's pocket. What seemed more important however, was a piece of writing-paper upon which Mr. Barnes found an exact copy of the list and description which he had in his pocket. The detective noticed with astonishment that though Mr. Mitchel had refused to permit this examination of the contents of the case, he made no effort to prevent it, and now sat back looking on in the most unconcerned way.
"Mr. Mitchel," said Mr. Barnes, "why did you object to my looking into this case?"
"I never show my jewels to—strangers. It is wrong to tempt people."
"You are impertinent, sir! What do you mean?"
"I mean that I regulate my life by rule. This is one of my rules, and though I do not doubt your honesty, you are a stranger to me and so come within the operation of my rule."