- E-bookThe Forgotten DoorAlexander Key
- E-bookEscape to Witch MountainAlexander Key
- E-bookThe Incredible TideAlexander Key
- E-bookThe Case of the Vanishing BoyAlexander Key
- E-bookThe Magic MeadowAlexander Key
- E-bookFlight to the Lonesome PlaceAlexander Key
- E-bookFlight to the Lonesome PlaceAlexander Key
- E-bookThe Preposterous Adventures of SwimmerAlexander Key
- E-bookThe Preposterous Adventures of SwimmerAlexander Key
- E-bookThe Golden EnemyAlexander Key
- E-bookBoltsAlexander Key
- E-bookJaggerAlexander Key
- E-bookSprocketsAlexander Key
- E-bookMystery of the Sassafras ChairAlexander Key
- E-bookMystery of the Sassafras ChairAlexander Key
- E-bookThe Sword of AradelAlexander Key
- E-bookThe Sword of AradelAlexander Key
- E-bookRivets and SprocketsAlexander Key
- E-bookThe Strange White DovesAlexander Key
- E-bookSéries: SprocketsAlexander Key