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146 fastened, but the key was in the lock and they soon had the portal open and they leaped outside. Then both started in the direction of the gymnasium shed.

"See anybody?" cried Tom.

"No, it's too dark," answered Dick. "But that must have been Abner Filbury's gun."

The two reports from the shotgun had aroused many in various buildings around the campus, and windows were being raised and heads thrust out.

"What's the trouble?"

"Who fired those shots?"

"Is it a joke?"

"There go two of the Rovers!"

"Are they up to some trick?"

"More than likely. You can't keep Tom Rover quiet."

So the comments ran on, while Dick and Tom sped in the direction of the shed. As they came closer they received a sudden challenge from the big doorway.

"Hi! don't you dare to come back here, or I'll shoot you!" The words were uttered by Abner Filbury, who stood there, shotgun in hand and lantern by his side.

"Don't shoot!" ordered Dick. "It is I, Dick Rover! What's the trouble?"

"Oh, so it's you, Mr. Rover!" returned the