“I can’t help that,” replied Don, “I’ll not give myself up. That isn’t my style.”

The sentry had seen many a boy in a tight corner, but he had never before seen one who took matters as coolly as Don did. All the other students of his acquaintance would have been frightened when they found that every avenue of escape was closed against them; but Don was as serene as a summer’s morning.

“You’re a plucky one,” said the sentry, “and I am sorry that I can not help you. If my relief—Get out of sight, quick! quick!” he added, as a heavy step sounded on the stairs. “That’s the officer of the day; and if he finds this door unlocked, I shall be in as bad a box as you are.”

Don went back into the hall, his movements being quickened by a gentle push from the sentry, who, having closed and locked the door, succeeded in reaching his own hall just a second before the officer of the day appeared at the head of the stairs. Close at his heels came the corporal of the guard, who carried a lighted lantern in his hand.

“Sentry,” said the officer, “have any of your men left their rooms to-night?”

“Not since I have been on post, sir,” replied the sentry. “The beds were all occupied half an hour ago.”

“We will look into this matter, corporal,” said the officer; and as he spoke he led the way to the farther end of the hall to begin an examination of the rooms. The sentry knew that he would do this, and he awaited the issue of events with no little uneasiness.

“Somebody is in for a regular overhauling,” said he to himself. “Of course they will see that Gordon’s bed is empty, and the next question to be decided will be: Who let him out, Porter or I? I know I didn’t do it; Porter will be sure to deny it—he can keep a smooth face and tell a lie easier than any boy I ever saw—and unless I can prevail upon Gordon to back up my statement, I shall be in a bad fix.”

This was the sentry’s only chance for escape, and it looked like a very slim one. He was not at all acquainted with Don Gordon; in fact he had never exchanged a word with him until that night, and consequently he had no idea what Don would do when he was taken before the superintendent and ordered to give the names of the floor-guard and of the outside sentry who had permitted him to pass unchallenged. Would he refuse to obey the order, as an honorable boy ought to do, or would he seek to screen himself by making a clean breast of everything? While the sentry was turning these matters over in his mind, the officer of the day opened the door of Don’s dormitory.

“It’s all over now,” thought he, “and the next thing is the investigation. I don’t believe I shall have another opportunity to speak to Gordon to-night, for my relief ought to be along now; but I must see him the first thing in the morning and find out what sort of a story he intends to tell when he is hauled up. If he has nerve enough to keep a still tongue in his head——”