Ruth Fielding at the War Front; or, The Hunt for the Lost Soldier

Ruth Fielding of the Red Mill; Or, Jasper Parloe's Secret

Ruth Fielding at Snow Camp; Or, Lost in the Backwoods

Ruth Fielding in Moving Pictures; Or, Helping the Dormitory Fund

Ruth Fielding on Cliff Island; Or, The Old Hunter's Treasure Box

Ruth Fielding and the Gypsies; Or, The Missing Pearl Necklace

Ruth Fielding Down East; Or, The Hermit of Beach Plum Point

Ruth Fielding at Briarwood Hall; or, Solving the Campus Mystery

Ruth Fielding at Lighthouse Point; or, Nita, the Girl Castaway

Ruth Fielding at Silver Ranch; Or, Schoolgirls Among the Cowboys

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