“Yes, I was disappointed. True, I had brought about the closing of that house, but of the huge sums of money fraudulently obtained from victims, I could find no trace in the accounts of Madame Jean. She defied me with silence, simply declining to give any account of herself beyond admitting that she conducted an hotel at which opium might be smoked if desired. Blagueur! Sen, the Chinaman, who professed to speak nothing but Chinese—ah! cochon!—was equally a difficult case, Nom d'un nom! I was in despair, for apart from frauds connected with the concern, I had more than small suspicions that at least one death—that of a wealthy banker—could be laid at the doors of the establishment in Rue St. Claude.”...
Dr. Cumberly bent yet lower, watching the speaker's face.
“A murder!” he whispered.
“I do not say so,” replied Max, “but it certainly might have been. The case then must, indeed, have ended miserably, as far as I was concerned, if I had not chanced upon a letter which the otherwise prudent Madame Jean had forgotten to destroy. Triomphe! It was a letter of instruction, and definitely it proved that she was no more than a kind of glorified concierge, and that the chief of the opium group was in London.”
“Undoubtedly in London. There was no address on the letter, and no date, and it was curiously signed: Mr. King.”
“Mr. King!”
Dr. Cumberly rose slowly from his chair, and took a step toward M. Max.
“You are interested?” said the detective, and shrugged his shoulders, whilst his mobile mouth shaped itself in a grim smile. “Pardieu! I knew you would be! Acting upon another clue which the letter—priceless letter—contained, I visited the Credit Lyonnais. I discovered that an account had been opened there by Mr. Henry Leroux of London on behalf of his wife, Mira Leroux, to the amount of a thousand pounds.”
“A thousand pounds—really!” cried Dr. Cumberly, drawing his heavy brows together—“as much as that?”
“Certainly. It was for a thousand pounds,” repeated Max, “and the whole of that amount had been drawn out.”