How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)
Percy Jackson The Complete Collection
Rick Riordan
How to Seize a Dragon's Jewel
How to Train Your Dragon (10)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)
The Son of Neptune
The Heroes of Olympus (2)
The Burning Maze
The Trials of Apollo (3)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco