The Sword of Summer
Rick Riordan
Magnus Chase and the Gods of Asgard (1)
The Wyrm King
Tony DiTerlizzi & Holly Black
The Chalice of the Gods
Percy Jackson and the Olympians (6)
Inheritance
Christopher Paolini
The Inheritance Cycle (4)
How to Train Your Dragon
Cressida Cowell
How to Train Your Dragon (1)
How to Be a Pirate
How to Train Your Dragon (2)
How to Speak Dragonese
How to Train Your Dragon (3)
How to Cheat a Dragon's Curse
How to Train Your Dragon (4)
Hero's Guide to Deadly Dragons
How to Train Your Dragon (6)