How To Train Your Dragon: How to Betray a Dragon's Hero: Book ...
Cressida Cowell
How to Train Your Dragon (11)
The Burning Maze
Rick Riordan
The Trials of Apollo (3)
The House of Hades
The Heroes of Olympus (1)
How to Steal a Dragon's Sword
How to Train Your Dragon (9)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Sea of Monsters
Percy Jackson and the Olympians (2)