The mention of my friend’s name had an extraordinary effect upon the little man. The look of anger passed in an instant from his face. His features became tense and alert.

“Have you come from Holmes?” he asked.

“I have just left him.”

“What about Holmes? How is he?”

“He is desperately ill. That is why I have come.”

The man motioned me to a chair, and turned to resume his own. As he did so I caught a glimpse of his face in the mirror over the mantelpiece. I could have sworn that it was set in a malicious and abominable smile. Yet I persuaded myself that it must have been some nervous contraction which I had surprised, for he turned to me an instant later with genuine concern upon his features.