stop a man leaving this country anywhere round the coast except by going to the police."
"Can it be," I suggested, "that Samuel and Denson are working in collusion, and have perhaps insured the stones, and now want your help to make out a case of loss?"
"Scarcely that, I think, for more than one reason. First, it isn't a risk any insurer would take, in the circumstances. Next, the insurer would certainly want to know why the police were not informed at once. But there is more. I have not been idle this while, as you would know. I will tell you some of the things I have ascertained. To begin with, Samuel is known in Hatton Garden only as a dealer on a very small and peddling scale. A dabbler in commissions, in fact, rather than a buyer and seller of diamonds in quantities on his own account. His office is nothing but a desk in a small room he shares with two others—small dealers like himself. When I spoke to the people most likely to know, of his offering fifteen thousand pounds' worth of diamonds on his own account, they laughed. An investment of two or three hundred pounds in stones was about his limit, they said. Now that fact offers fresh suggestions, doesn't it?" Hewitt looked at me significantly.
"You mean," I said after a little consideration,
