How to Train Your Dragon: 12
Cressida Cowell
How to Train Your Dragon (12)
The Demigod Diaries
Rick Riordan
The Heroes of Olympus (0.0)
The Burning Maze
The Trials of Apollo (3)
Hero's Guide to Deadly Dragons
How to Train Your Dragon (6)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco