The Saddle Boys in the Grand Canyon; or, The Hermit of the Cave

The Pony Rider Boys in the Ozarks; Or, The Secret of Ruby Mountain

The Pony Rider Boys in the Rockies; Or, The Secret of the Lost Claim

The Pony Rider Boys in the Grand Canyon; Or, The Mystery of Bright Angel Gulch

The Pony Rider Boys in Texas; Or, The Veiled Riddle of the Plains

The Pony Rider Boys in Alaska; Or, The Gold Diggers of Taku Pass

Ruth Fielding In the Saddle; Or, College Girls in the Land of Gold

Frank Merriwell's Backers; Or, The Pride of His Friends

Frank Merriwell's Triumph; Or, The Disappearance of Felicia

The Pony Rider Boys in Louisiana; or, Following the Game Trails in the Canebrake

The Pony Rider Boys on the Blue Ridge; or, A Lucky Find in the Carolina Mountains

Red Mesa