His words were cut short by a sudden scream of “Help! Help! Murder!” With a thrill I recognized the voice of that of my friend. I rushed madly from the room on to the landing. The cries, which had sunk down into a hoarse, inarticulate shouting, came from the room which we had first visited. I dashed in, and on into the dressing-room beyond. The two Cunninghams were bending over the prostrate figure of Sherlock Holmes, the younger clutching his throat with both hands, while the elder seemed to be twisting one of his wrists. In an instant the three of us had torn them away from him, and Holmes staggered to his feet, very pale and evidently greatly exhausted.

“Arrest these men, Inspector,” he gasped.

“On what charge?”

“That of murdering their coachman, William Kirwan.”