The Burning Maze
Rick Riordan
The Trials of Apollo (3)
How to Twist a Dragon's Tale
Cressida Cowell
How to Train Your Dragon (5)
Percy Jackson's Greek Heroes
Fire World
Chris D'Lacey
The Last Dragon Chronicles (6)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
How to Break a Dragon's Heart
How to Train Your Dragon (8)