“But how?”

“Through the skylight. We shall soon see how he managed it.” He swung himself up onto the roof. “Ah, yes,” he cried; “here’s the end of a long light ladder against the eaves. That is how he did it.”

“But it is impossible,” said Miss Hunter; “the ladder was not there when the Rucastles went away.”

“He has come back and done it. I tell you that he is a clever and dangerous man. I should not be very much surprised if this were he whose step I hear now upon the stair. I think, Watson, that it would be as well for you to have your pistol ready.”

The words were hardly out of his mouth before a man appeared at the door of the room, a very fat and burly man, with a heavy stick in his hand. Miss Hunter screamed and shrunk against the wall at the sight of him, but Sherlock Holmes sprang forward and confronted him.

“You villain!” said he, “where’s your daughter?”

The fat man cast his eyes round, and then up at the open skylight.

“It is for me to ask you that,” he shrieked, “you thieves! Spies and thieves! I have caught you, have I? You are in my power. I’ll serve you!” He turned and clattered down the stairs as hard as he could go.

“He’s gone for the dog!” cried Miss Hunter.

“I have my revolver,” said I.