The major looked interested and tapped his glasses on his thumb. “He was coming here to see me about a change in lessons, eh?” asked the major. “But, gentlemen, he never did come here. I haven’t seen him at all. You say his overcoat and hat are gone?”

“Yes, sir,” replied Jim.

“How very odd,” commented the major. “He certainly wouldn’t have left the building without permission, and no one gave him that, I’m sure. Wait until I call Captain Chalmers.”

Captain Chalmers had not given Don permission to go anywhere, it developed. The major was more puzzled than ever. He went to their room with them and looked about carefully, but nothing was found.

“This is most unexpected and disturbing,” declared the major. “We must find out from town if any of the cadets were seen there.”

A telephone call to town failed to lead to the discovery of the missing boy. It was with anxious hearts that Jim and Terry went to the supper table that night.

The news of Don’s strange disappearance spread over the school like wildfire and the cadets dropped in to see Jim and express their sympathy and their determination to help if possible. It was on that evening that one lone clue was discovered. A man who worked in the kitchen told Chipps that he had seen Don go out the back door and head for the lake. Jim and Terry went to see this man, but he had no news but what he had told Chipps.

“He had on his hat and his overcoat,” the man told Jim. “And he went down to the boathouse. That’s all I saw of him. I only noticed it because I thought it was funny he wasn’t in class. I don’t know if he went into the boathouse or not.”

The major dropped in to tell them that he had put off his business trip until Don should be found. Jim thanked him for his interest and thought.

“Oh, nonsense,” protested the major, waving his hand. “I’m deeply interested in all of my boys, and of course I wouldn’t rest easily until he had been found.”