How to Train Your Viking
Cressida Cowell
How to Train Your Dragon (1.5)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Chalice of the Gods
Rick Riordan
Percy Jackson and the Olympians (6)
The Fork, the Witch, and the Worm
Christopher Paolini & Angela Paolini
The Inheritance Cycle (4.5)
How to Ride a Dragon's Storm
How to Train Your Dragon (7)