How to Ride a Dragon's Storm
Cressida Cowell
How to Train Your Dragon (7)
How to Be a Pirate
How to Train Your Dragon (2)
Camp Jupiter Classified
Rick Riordan
The Trials of Apollo (4.50)
The Burning Maze
The Trials of Apollo (3)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Son of Neptune
The Heroes of Olympus (2)