1 -
The Rover Boys at Colby Hall - or The Struggles of the Young Cadets
3 -
The Rover Boys Under Canvas - or The Mystery of the Wrecked Submarine
4 -
The Rover Boys on a Hunt - or The Mysterious House in the Woods
5 -
The Rover Boys in the Land of Luck - Stirring Adventures in the Oil Fields
6 -
The Rover Boys at Big Horn Ranch - The Cowboys' Double Round-Up
