The Burning Maze
Rick Riordan
The Trials of Apollo (3)
The Fire Within
Chris D'Lacey
The Lost Hero
The Heroes of Olympus (1)
Hero's Guide to Deadly Dragons
Cressida Cowell
How to Train Your Dragon (6)
How to Be a Pirate
How to Train Your Dragon (2)
How to Twist a Dragon's Tale
How to Train Your Dragon (5)