THE ROVER BOYS ON THE OCEAN
Or A Chase for a Fortune
THE ROVER BOYS IN THE JUNGLE
Or Stirring Adventures in Africa
THE ROVER BOYS OUT WEST
Or The Search for a Lost Mine
THE ROVER BOYS ON THE GREAT LAKES
Or The Secret of the Island Cave
THE ROVER BOYS IN THE MOUNTAINS
Or A Hunt for Fame and Fortune
THE ROVER BOYS ON LAND AND SEA
Or The Crusoes of Seven Islands
THE ROVER BOYS IN CAMP
Or The Rivals of Pine Island
THE ROVER BOYS ON THE RIVER
Or The Search for the Missing Houseboat
THE ROVER BOYS ON THE PLAINS
Or The Mystery of Red Rock Ranch
THE ROVER BOYS IN SOUTHERN WATERS
Or The Deserted Steam Yacht