"Then how can he be a lieutenant?" demanded Dalzell, looking more bewildered.

"He isn't," Dave answered simply.

"But the O.C. introduced him that way."

"And quite properly," answered Darrin, whereat his companions stared at him harder than ever.

"Let's walk along," proposed Dave, "and I'll tell you the little that I know, or think I know, about the matter. Of course, you fellows all know about the Pollard submarine boats? The government owns a few of them now, and is going to buy a lot more of the Pollard craft."

"But that kid officer?" insisted Dan.

"If you'll wait I'll come to that. Benson, his name is; Jack Benson he's commonly called. He and two boy friends got in on the ground floor at the Farnum shipyard. They were boys of considerable mechanical skill, and they found their forte in the handling of submarine boats. They've done some clever, really wonderful feats with submarines. Farnum, the owner of the yard, trusted these boys, after a while, to show off the fine points of the craft to our Navy officers and others."

"But what has that to do with giving Benson a commission in the
Navy?" demanded Farley.

"I'm coming to that," Dave replied. "As I've heard the yarn, Benson and his two boy friends attracted attention even from the European governments. The Germans and some other powers even made them good offers to desert this country and go abroad as submarine experts. Our Navy folks thought enough of Benson and his chums to want to save them for this country. So the Secretary of the Navy offered all three the rank and command of officers without the actual commissions. As soon as these young men, the Submarine Boys as they are called, are twenty-one, the Navy Department will bestir itself to give them actual commissions and make them real staff or line officers."

"So that those kids will rank us in the service?" grumbled Dan.