Titles by John W. Duffield marked with tag: young-adult fantasy
- 1938 - Bomba, the Jungle Boy in the Steaming Grotto; or, Victorious Through Flame and Fury
- 1934 - Bomba, the Jungle Boy and the Hostile Chieftain; or, A Hazardous Trek to the Sea
- 1932 - Bomba, the Jungle Boy and the Painted Hunters; or, A Long Search Rewarded
- 1930 - Bomba, the Jungle Boy and the Lost Explorers; or, A Wonderful Revelation
- 1926 - Bomba, the Jungle Boy, or, The Old Naturalist's Secret