He was here last year---he and his two submarine friends.

We didn't see them, because our class didn't go out on the Pollard submarine boat that was here last year.

But you remember them, just the same.

You remember, too, that Mr.Benson and his friends were hazed by some of the men in last year's youngster class.

You heard about that?
A lot of the fellows came near getting ragged, but Benson didn't take offense, and his quick wit pulled that lot of last year's youngsters out of a bad fix." "Then Benson and his mates are real people ?" demanded Dan, still doubtful, if his voice were an indication.
"Yes; and Benson is a real submarine expert, too, even if he is a boy," Dave went on.
"Then he is only a boy ?" "He's seventeen or eighteen." "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.