"Could you obtain one?"

"I think not."

"But this man has been seen by many people. Could not some one you know, and who knows him, sketch a faithful likeness from memory?"

"I do not know of any one."

"Then I could not guarantee to find him. You see, I cannot work miracles. I can only work through certain laws which I have been fortunate enough either to recognize or discover; but there must ever be some data upon which to go, and, you see, you give me none that is in the least satisfactory."

"Perhaps you can," I said, "if I relate to you all the circumstances connected with what is, I think, a somewhat remarkable story."

I had determined to tell this little man every circumstance which might lead to Kaffar's discovery, especially those which happened in Yorkshire. It seemed my only resource, and I felt, that somehow something would come of it.

I therefore briefly related what I have written in this story.

"That man who mesmerized you is very clever," said the professor quietly, when I had finished. "It was very unfortunate for you that you should have matched yourself with such a one. His plot was well worked out in every respect. He only made a mistake in one thing."

"And that?"