"Mr. Holmes, Mr. Holmes," he said, turning the front of his coat and exhibiting the butt of a large revolver, which projected from the inside pocket. "I have been expecting you to do something original. This has been done so often, and what good has ever come from it? I assure you that I am armed to the teeth, and I am perfectly prepared to use my weapons, knowing that the law will support me. Besides, your supposition that I would bring the letters here in a note-book is entirely mistaken. I would do nothing so foolish. And now, gentlemen, I have one or two little interviews this evening, and it is a long drive to Hampstead." He stepped forward, took up his coat, laid his hand on his revolver, and turned to the door. I picked up a chair, but Holmes shook his head and I laid it down again. With a bow, a smile, and a twinkle Milverton was out of the room, and a few moments after we heard the slam of the carriage door and the rattle of the wheels as he drove away. [Illustration: "EXHIBITING THE BUTT OF A LARGE REVOLVER, WHICH PROJECTED FROM THE INSIDE POCKET."] Holmes sat motionless by the fire, his hands buried deep in his trouser pockets, his chin sunk upon his breast, his eyes fixed upon the glowing embers. For half an hour he was silent and still. Then, with the gesture of a man who has taken his decision, he sprang to his feet and passed into his bedroom. A little later a rakish young work-man with a goatee beard and a swagger lit his clay pipe at the lamp before descending into the street. "I'll be back some time, Watson," said he, and vanished into the night. I understood that he had opened his campaign against Charles Augustus Milverton; but I little dreamed the strange shape which that campaign was destined to take. For some days Holmes came and went at all hours in this attire, but beyond a remark that his time was spent at Hampstead, and that it was not wasted, I knew nothing of what he was doing. At last, however, on a wild, tempestuous evening, when the wind screamed and rattled against the windows, he returned from his last expedition, and having removed his disguise he sat before the fire and laughed heartily in his silent inward fashion. "You would not call me a marrying man, Watson?" "No, indeed!" "You'll be interested to hear that I am engaged." "My dear fellow! I congrat----" "To Milverton's housemaid." "Good heavens, Holmes!" "I wanted information, Watson." "Surely you have gone too far?" "It was a most necessary step. I am a plumber with a rising business, Escott by name. I have walked out with her each evening, and I have talked with her. Good heavens, those talks! However, I have got all I wanted. I know Milverton's house as I know the palm of my hand." "But the girl, Holmes?" He shrugged his shoulders.