“Yes, sir. What about it?”

“It must not be left like that. Some one might be going there with a lantern and blowing up the whole place.”

“No fear, sir,” said the sergeant grimly. “I swept that all away hours ago.”

“Did you? Oh, that’s right. I was afraid you might have left it there.”

“No, sir; I know too well what powder will do.”

“Then I’ve woke you up with a false alarm.”

“And yourself too,” said the sergeant quietly. “There was no need, but there’s nothing like making sure.”

“No, there’s nothing like making sure. Good-night, Sergeant.”

“Good-night, sir.”

Dick felt foolish, but decidedly more comfortable, as he went down into the courtyard, closely followed by his white-coated servant. But, being there, he thought he might as well go along close to the wall, and come suddenly upon the two men on sentry at the gate, to make sure that they were well on the alert.