late Lady Verinder's liberality to me. I will go back to my old work—if you want me, and if you will trust me—on that consideration, and on no other. Not a farthing of money is to pass, if you please, from you to me. This is on honor. Now tell me, Mr. Blake, how the case stands since you wrote to me last."
I told him of the experiment with the opium, and of what had occurred afterwards at the bank in Lombard Street. He was greatly struck by the experiment—it was something entirely new in his experience. And he was particularly interested in the theory of Ezra Jennings, relating to what I had done with the Diamond, after I had left Rachel's sitting-room, on the birthday night.
"I don't hold with Mr. Jennings that you hid the Moonstone," said Sergeant Cuff. "But I agree with him, that you must certainly have taken it back to your own room."
"Well?" I asked. "And what happened then?"
"Have you no suspicion yourself of what happened, sir?"
"Has Mr. Bruff no suspicion?"
"No more than I have."
Sergeant Cuff rose, and went to my writing-table. He came back with a sealed envelope. It was marked "Private;" it was addressed to me; and it had the Sergeant's signature in the corner.
"I suspected the wrong person, last year," he said: "and I may be suspecting the wrong person now. Wait to open the envelope, Mr. Blake, till you have got at the truth. And then compare the name of the guilty person, with the name that I have written in that sealed letter."
I put the letter into my pocket--and then asked for the Sergeant's opinion of the measures which we had taken at the bank.
"Very well intended, sir," he answered, "and quite the right thing to do. But there was another person who ought to have been looked after besides Mr. Luker."
"The person named in the letter you have just given to me?"
"Yes, Mr. Blake, the person named in the letter. It can't be helped now. I shall have something to propose to you and Mr. Bruff, sir, when the time comes. Let's wait, first, and see if the boy has anything to tell us that is worth hearing."
It was close on ten o'clock, and the boy had not made his appearance. Sergeant Cuff talked of other matters. He asked after his old friend Betteredge, and his old enemy the