- eBookThe Mystery of the Night ExplorersMary Adrian
- eBookThe Tugboat MysteryMary Adrian
- eBookThe Mystery of the Dinosaur BonesMary Adrian
- eBookThe Fireball MysteryMary Adrian
- eBookThe Kite MysteryMary Adrian
- eBookThe Uranium MysteryMary Adrian
- eBookThe Indian Horse MysteryMary Adrian
- eBookThe Indian Horse MysteryMary Adrian
- eBookThe Rare Stamp MysteryMary Adrian