of a mighty organization, the full extent of which you, with all your cleverness, have been unable to realize. You must stand clear, Mr. Holmes, or be trodden under foot.'
"'I am afraid,' said I, rising, 'that in the pleasure of this conversation I am neglecting business of importance which awaits me elsewhere.'
"He rose also and looked at me in silence, shaking his head sadly.
"'Well, well,' said he, at last. 'It seems a pity, but I have done what I could. I know every move of your game. You can do nothing before Monday. It has been a duel between you and me, Mr. Holmes. You hope to place me in the dock. I tell you that I will never stand in the dock. You hope to beat me. I tell you that you will never beat me. If you are clever enough to bring destruction upon me, rest assured that I shall do as much to you.'
"'You have paid me several compliments, Mr. Moriarty,' said I. 'Let me pay you one in return when I say that if I were assured of the former eventuality I would, in the interests of the public, cheerfully accept the latter.'
"'I can promise you the one, but not the other,' he snarled, and so turned his rounded back upon me, and went peering and blinking out of the room.
"That was my singular interview with Professor Moriarty. I confess that it left an unpleasant effect upon my mind. His soft, precise fashion of speech leaves a conviction of sincerity which a mere bully could not produce. Of course, you will say: 'Why not take police precautions against him?' the reason is that I am well convinced that it is from his agents the blow will fall. I have the best proofs that it would be so."
"You have already been assaulted?"
"My dear Watson, Professor Moriarty is not a man who lets the grass grow under his feet. I went out about mid-day to transact some business in Oxford Street. As I passed the corner which leads from Bentinck Street on to the Welbeck
