MY DEAR BOYS: This book is a complete story in itself, but forms the first volume in a line issued under the general title, "The Second Rover Boys Series for Young Americans." As mentioned in several of the other volumes of the first series, this line was started a number of years ago with the publication of "The Rover Boys at School," in which my readers were introduced to Dick, Tom, and Sam Rover, three wide-awake American lads. In that volume and in those which followed I gave the particulars of their adventures while attending Putnam Hall Military Academy, Brill College, and while on numerous outings, both in our own country and abroad. The Rover boys were, of course, growing older; and, having met three young ladies very much to their liking, each married and settled down, as related in detail in the several volumes immediately preceding this. They were well established in business; and in due course of time Dick Rover was blessed with a son, as was also Sam, while the fun-loving Tom became the proud possessor of a pair of twins who were as full of life as their father had ever been. In this volume the younger Rover boys are old enough to go to boarding school. They are sent to Colby Hall Military Academy, presided over by an old friend and schoolmate of their fathers; and there they make both friends and enemies, and have numerous adventures. In the beginning this chronicle of the younger Rovers, I wish to thank my numerous readers for all the kind things they have said about the other volumes in these series, and I trust that they will make just as good friends of Jack, Andy and Randy, and Fred as they did of Dick, Tom, and Sam Rover. --This text refers to the Kindle Edition edition.