"Some mistake evidently," muttered the assistant.

"I am going to find out what the crumbs in that other dormitory mean," answered Dr. Clay.

He passed out, and meeting Poole in the hallway caught the pupil by the shoulder.

"Just come with me," he said, and led the way back to the room Nat occupied with his cronies. "Now, explain this!" he demanded.

Of course poor Nat Poole could not explain, and neither could Plum nor Jasniff. They tried to tell their story, but for once the doctor was too impatient to listen.

"As there was no cause for that alarm, I want you all to go to bed," said he, after listening to a few words. "It is midnight and I want all of you to get your night's rest. In the morning I'll make an investigation."

"What of this muss?" faltered Poole.

"Clean it up, every bit of it!" thundered the doctor, and passed out and to his own room once more.

"I won't touch the stuff!" snarled Nat Poole.