"What business have you to be playing with clockwork rats?"

"Then I remembered," said Mike, "that I had left my Horace in my desk, so I came in—"

"And by a fluke, sir," said Wilson, as one who tells of strange things, "the rat happened to be pointing in the same direction, so he came in, too."

"I met Sammy on the gravel outside and he followed me."

"I tried to collar him, but when you told me to come in, sir, I had to let him go, and he came in after the rat."

It was plain to Mr. Downing that the burden of sin was shared equally by both culprits. Wilson had supplied the rat, Mike the dog; but Mr. Downing liked Wilson and disliked Mike. Wilson was in the Fire Brigade, frivolous at times, it was true, but nevertheless a member. Also he kept wicket for the school. Mike was a member of the Archaeological Society, and had refused to play cricket.

Mr. Downing allowed these facts to influence him in passing sentence.

"One hundred lines, Wilson," he said. "You may go."

Wilson departed with the air of a man who has had a great deal of fun, and paid very little for it.

Mr. Downing turned to Mike. "You will stay in on Saturday afternoon, Jackson; it will interfere with your Archaeological studies, I fear, but it may teach you that we have no room at Sedleigh for boys who spend their time loafing about and making themselves a nuisance. We are a keen school; this is no place for boys who do nothing but waste their time. That will do, Jackson."