How to Seize a Dragon's Jewel
Cressida Cowell
How to Train Your Dragon (10)
The Tyrant's Tomb
Rick Riordan
The Trials of Apollo (4)
The House of Hades
The Heroes of Olympus (1)
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