"N—no, sir. I—I haven't had a thing, sir."

"Jasniff, what about this?"

Nick Jasniff shrugged his shoulders. "I thought there was something going on in Porter's room. Poole said so."

"Well, who sounded that alarm here?" thundered Dr. Clay.

To this question there was no answer.

"We had better look in No. 12," suggested Job Haskers, who had just come up, wrapped in a flannel robe and wearing slippers.

The doctor and his assistants turned to the dormitory occupied by Dave and his chums, and then looked into the bedroom adjoining. Everything was as clean and orderly as could be. The boys were up, but they were not dressed.

"What's the row?" asked Buster Beggs, sleepily. "Oh, Doctor, is that you? I thought I heard some noise."

"Didn't you hear the alarm?" asked Dave. "I thought it woke up everybody."

The doctor said little but looked around the rooms with care, and so did Job Haskers.