"That is all, sir."

"And you call it an explanation? Really, sir, it is one of the most extraordinary I have ever heard! And you expect me to accept it?" demanded the master, facing Paul, and looking him fully in the eyes.

"I trust so, sir, because I can give no other—have no other to give."

Mr. Weevil did not at once answer, but took two or three more turns across the room.

"I believe you to be a lad of honour, Percival," he said, stopping once more, "and a lad of sense. Let me put it to you, then, as a lad of honour and of sense. Supposing I am perfectly ready to accept your statement, do you really believe that the school will be as ready to accept it?"

"The school might be curious to know more, sir, but if you accept my explanation as sufficient, I don't see why anybody should question it."

"Yes, yes; that might be well enough. But there have been one or two rather mysterious things that have happened within the last month or two which have never been cleared up. There was the breaking open of my desk, for instance, and the torn pages in the Black Book."

"I could mention a still greater mystery that wants clearing up," thought Paul, as his mind went back to the afternoon when he had seen the master enter the strange hiding-place of Zuker.

"The culprit in that case has never been found out. It still remains a mystery," continued Mr. Weevil. "Then came the mysterious disappearance of the flag, and its equally mysterious return. The school will be getting suspicious—uneasy. If no better explanation is forthcoming than that you have given me, suspicion will grow—I am certain of it."

Paul saw that the master was right. Still, he had no intention of giving up his secret.