“And Mr. Holmes knows it?”
“Mr. Holmes always knows whatever there is to know.”
“Well, we’ll hope he won’t fail and that Lord Cantlemere will be confounded. But I say, Billy, what is that curtain for across the window?”
“Mr. Holmes had it put up there three days ago. We’ve got something funny behind it.”
Billy advanced and drew away the drapery which screened the alcove of the bow window.
Dr. Watson could not restrain a cry of amazement. There was a facsimile of his old friend, dressing-gown and all, the face turned three-quarters towards the window and downwards, as though reading an invisible book, while the body was sunk deep in an armchair. Billy detached the head and held it in the air.
“We put it at different angles, so that it may seem more life-like. I wouldn’t dare touch it if the blind were not down. But when it’s up you can see this from across the way.”
‘‘We used something of the sort once before.”
“Before my time,” said Billy. He drew the window curtains apart and looked out into the street. “There are folk who watch us from over yonder. I can see a fellow now at the window. Have a look for yourself.”
Watson had taken a step forward when the bedroom door opened, and the long, thin form of Holmes emerged, his face pale and drawn, but his step and bearing as active as ever. With a single spring he was at the window, and had drawn the blind once more.
“That will do, Billy,” said he. “You were in dan-
