• Ruth Fielding of the Red Mill; Or, Jasper Parloe's Secret
• Betty Gordon at Boarding School; Or, The Treasure of Indian Chasm
• Betty Gordon at Bramble Farm; Or, The Mystery of a Nobody
• Ruth Fielding At College; or, The Missing Examination Papers
• Ruth Fielding At Sunrise Farm; Or, What Became of the Raby Orphans
• Ruth Fielding and the Gypsies; Or, The Missing Pearl Necklace
• Ruth Fielding in the Great Northwest; Or, The Indian Girl Star of the Movies
• Ruth Fielding at Briarwood Hall; or, Solving the Campus Mystery
• Ruth Fielding on the St. Lawrence; Or, The Queer Old Man of the Thousand Islands
• Ruth Fielding In the Saddle; Or, College Girls in the Land of Gold
• Ruth Fielding at Snow Camp; Or, Lost in the Backwoods
• Betty Gordon at Mountain Camp; Or, The Mystery of Ida Bellethorne
• Ruth Fielding Down East; Or, The Hermit of Beach Plum Point
• Ruth Fielding at Silver Ranch; Or, Schoolgirls Among the Cowboys
• Betty Gordon in Washington; Or, Strange Adventures in a Great City