The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
Flashback
Shannon Messenger
Keeper of the Lost Cities (7)
Unraveled
Keeper of the Lost Cities (9.5)
The Wyrm King
Tony DiTerlizzi & Holly Black
How to Break a Dragon's Heart
Cressida Cowell
How to Train Your Dragon (8)
How to Seize a Dragon's Jewel
How to Train Your Dragon (10)
How to Speak Dragonese
How to Train Your Dragon (3)
How To Train Your Dragon: How to Betray a Dragon's Hero: Book ...
How to Train Your Dragon (11)