“Ah!” cried Holmes.
“It sounds incredible, for I have not, as far as I know, an enemy in the world. Yet from last night’s experience I can come to no other conclusion.”
“Pray let me hear it.”
“You must know that last night was the very first night that I have ever slept without a nurse in the room. I was so much better that I thought I could dispense with one. I had a night-light burning, however. Well, about two in the morning I had sunk into a light sleep when I was suddenly aroused by a slight noise. It was like the sound which a mouse makes when it is gnawing a plank, and I lay listening to it for some time under the impression that it must come from that cause. Then it grew louder, and suddenly there came from the window a sharp metallic snick. I sat up in amazement. There could be no doubt what the sounds were now. The first ones had been caused by some one forcing an instrument through the slit between the sashes, and the second by the catch being pressed back.
“There was a pause then for about ten minutes, as if the person were waiting to see whether the noise had awakened me. Then I heard a gentle creaking as the window was very slowly opened. I could stand it no longer, for my nerves are not what they used to be. I sprang out of bed and flung open the shutters. A man was crouching at the window. I could see little of him, for he was gone like a flash. He was wrapped in some sort of cloak which came across the lower part of his face. One thing only I am sure of, and that is that he had some weapon in his hand. It looked to me like a long knife. I distinctly saw the gleam of it as he turned to run.”