The Duke fell back in his chair.
“And whom do you accuse?”
Sherlock Holmes’s answer was an astounding one. He stepped swiftly forward and touched the Duke upon the shoulder.
“I accuse you ,” said he. “And now, your Grace, I’ll trouble you for that check.”
Never shall I forget the Duke’s appearance as he sprang up and clawed with his hands, like one who is sinking into an abyss. Then, with an extraordinary effort of aristocratic self-command, he sat down and sank his face in his hands. It was some minutes before he spoke.
“How much do you know?” he asked at last, without raising his head.
“I saw you together last night.”
“Does anyone else beside your friend know?”
“I have spoken to no one.”
The Duke took a pen in his quivering fingers and opened his checkbook.
“I shall be as good as my word, Mr. Holmes. I am about to write your check, however unwelcome the information which you have gained may be to me. When the offer was first made, I little thought the turn which events might take. But you and your friend are men of discretion, Mr. Holmes?”
“I hardly understand your Grace.”
“I must put it plainly, Mr. Holmes. If only you two know of this incident, there is no reason why it should go any farther. I think twelve thousand pounds is the sum that I owe you, is it not?”