The Baronet was the first to break silence.
"That tower must be watched to-night," he said in a hoarse voice.
"Sir Hugh," said my uncle sternly, "if Angelo be the fiend you think him, he must be arrested at once."
"That will require a magistrate's warrant," I said.
"Right; and we will procure it without delay," observed the Baronet, rising. "Colonel Montague is the nearest magistrate. He lives at the Manse—five miles from here. The carriage can take us there and back in an hour, and——"
His further words were checked by the sudden appearance of Fruin, who, without having waited to knock, entered the room, and, brimful of excitement, cried:
"I've found the picture, Sir Hugh!"
"The devil you have! Where on earth was it?"
"In the Nuns' Tower, to be sure!"
"The Nuns' Tower! How did you manage to get in there?"