The Phantom Friend A Judy Bolton Mystery

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

The Boy Scouts of the Flying Squadron

The Girls of Central High on Track and Field Or, The Champions of the School League

The Girls of Central High at Basketball; Or, The Great Gymnasium Mystery

Missing at Marshlands Arden Blake Mystery Series #3

Sign of the Green Arrow A Mystery Story

The Motor Boys Afloat; or, The Stirring Cruise of the Dartaway

The Trail of the Green Doll A Judy Bolton Mystery

The Green Tent Mystery at Sugar Creek

The Black Police: A Story of Modern Australia

The Radio Girls at Forest Lodge; or, The Strange Hut in the Swamp