How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)
Unfinished Tales
J. R. R. Tolkien
The Sea of Monsters
Rick Riordan
Percy Jackson and the Olympians (2)
Hero's Guide to Deadly Dragons
How to Train Your Dragon (6)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Burning Maze
The Trials of Apollo (3)