Summary

Portrait of Arthur Morrison Arthur Morrison The Red Triangle — The Affair of Samuel's Diamonds (1903)

When I sell to make a profit, perhaps for somebody else, I don't want that somebody to know my customer, else he sells direct and I lose my profit—fery natural. See?"
"Of course, I understand. It's a point of business among you gentlemen to keep your own customers to yourselves. And often, no doubt, diamonds pass through several hands before reaching the eventual customer, leaving a profit in each."
"Always, Mr. Hewitt—always, you might say. Well, you see, Denson sends down that his customer is in, and I come up. Denson comes out from the inner office, takes my case, and I wait in there."
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Portrait of Arthur Morrison Arthur Morrison The Red Triangle — The Affair of Samuel's Diamonds (1903)

So far as I can see, there is no clue whatever beyond the Red Triangle, which, as yet, I cannot understand. The strangling points to the murder being committed by a powerful man, certainly, and it is a form of crime that may have been perpetrated silently. But beyond that I can see nothing. The apparent motivelessness of the thing makes the mystery all the darker, and the circumstances we are acquainted with, instead of helping us, seem to complicate the puzzle.
"What was it that Denson feared when he left those diamonds behind him, when he might have carried them away?
Source: Wikisource

Portrait of Arthur Morrison Arthur Morrison The Red Triangle — The Affair of Samuel's Diamonds (1903)

I may be making myself an accomplice in some criminal scheme. You observe that he never called for the police—a natural impulse in a robbed man. Indeed, he expressly vetoes all communication with the police."
"Of course he gave reasons."
"But the reasons are not good enough. I can't 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?"
Source: Wikisource

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