The Staff of Serapis
Rick Riordan
Demigods and Magicians (1)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Throne of Fire
The Kane Chronicles (2)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
How to Seize a Dragon's Jewel
Cressida Cowell
How to Train Your Dragon (10)