The sentry brought his soliloquy to a close, and stood looking the very picture of astonishment. Just then the officer of the day and his attendant came out of Don’s room, and there was nothing in their faces to indicate that they had made any discovery there. They looked into all the other dormitories, and then came back to the lower end of the hall and tried the door that led to the fire-escape. It was locked, and everything seemed to be all right.

“Sentry,” said the officer of the day, in stern tones. “Are you sure you are telling me the truth when you say that no one has passed you to-night?”

“Yes, sir, I am,” answered the boy, looking his questioner squarely in the eye. “No one has passed across this floor since I came on post.”

“When this matter has been sifted to the bottom, as it certainly will be, a fine reckoning awaits somebody,” said the officer. “Corporal, we will go to the next floor.”

When the two had disappeared, and the sentry’s ears told him that they were making the round of the dormitories above, he pulled his key from his pocket and quickly opened the door behind which Don Gordon stood trying to make up his mind to something. He did not expect to get into his room that morning, and the question he was trying to decide, was: Should he stay there in the cold and take his chances of falling-in with the rest of the Plebes when they were marched down to the drill-room to answer to roll-call, or should he give himself up and ask permission to sit by the guard-room stove until he was thawed out? He was very much surprised when the door opened, and he saw the sentry beckoning to him.

“Gordon,” said the latter, in a hurried whisper. “You’re safe. Did you put a dummy in your bed before you came out?”

Don replied that he did.

“Well, it must be a perfect one, for the officer of the day went in there with a light and never saw anything to excite his suspicions. It’s the greatest wonder in the world to me that he didn’t miss your clothes.”

“My clothes were there,” answered Don, calmly. “I took my dress suit out of the closet and put it on a chair by the side of my bed, turning the coat inside out and doubling up the skirts of it so that it would look like a fatigue coat. What did the old fellow have to say about it, anyhow?”

The sentry could not waste much time in conversation, for every moment was precious; but he said enough to give Don an idea of what had passed between himself and the officer of the day, and to enable him to give Fisher and Duncan a very accurate account of it.