s
possible for him.

"But I'm not going to deliver the notes," he warned feebly. "You two
have got to do that much."

"All right, we will," answered Slugger. He turned to his crony. "You
slip one of them under Professor Lemm's door, and I'll place the other
on Colonel Colby's desk."

"All right, but be careful."

"Bet your life!"

Asa Lemm was just finishing his morning toilet and grumbling over the
happenings of the night, when he chanced to glance toward the door of
his room, and at that moment saw a letter thrust under it. He stared for
an instant in amazement, and then rushed forward and threw the door wide
open. But his movement, quick as it was, came too late, for Nappy
Martell had already slipped around a corner and made his escape. Taking
up the letter, the professor read the contents with great interest. The
communication ran as follows:

"DEAR PROFESSOR LEMM:

"If you want to know more about the trouble last night, ask John
Rover and Walter Baxter. They had the two billy goats. I think you
will find that all of the Rovers and the boys who go with them were
in this joke.

"Yours respectfully,

_"One Who Knows."_

"So that's who is guilty!" muttered the teacher, after reading the
letter a second time. "The Rovers, eh? I might have known it because of
the trouble I have had with them in the classroom. And I remember now
that I have also had trouble with that Baxter boy. I must see Colonel
Colby about this at once."

The professor hurried downstairs, and found that Colonel Colby had
entered his office but a few minutes before, and was perusing the
communication left there secretly by Slugger Brown.

"I have found out who was guilty last night," snapped Asa Lemm, as he
flourished the letter in his hand.

"Did you receive an anonymous communication?" demanded the master of the
Hall.

"I did, sir. But what makes you ask that question?"

"I have such a communication myself," and Colonel Colby indicated the
epistle.

"We must punish those rascals, sir!"

"First I want to find out if there is any truth in these letters,"
answered Colonel Colby. "Very frequently anonymous communications cannot
be relied upon."

"Oh, I haven't the least doubt but what Rover and Baxter are guilty!"
exclaimed Asa Lemm quickly. "I've had trouble in the classroom with
them, and also with the other Rovers. I should not be surprised if the
whole crowd had something to do with it."