- E-bookA Space Merchant's Tale & A Shotgun WeddingMatthew Mangum
- E-bookA Hero's QuestMatthew Mangum
- E-bookPangea LiberationMatthew Mangum
- E-bookLorin Robert MangumMatthew Mangum
- E-bookThe Keeper-PediaMatthew Mangum
- E-bookThe Spies of PangeaMatthew Mangum
- E-bookGrandma Was a PioneerMatthew Mangum
- E-bookSerie: The Keeper's UniverseMatthew Mangum