The Lost Hero
Rick Riordan
The Heroes of Olympus (1)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
How to Twist a Dragon's Tale
Cressida Cowell
How to Train Your Dragon (5)
How to Train Your Dragon
How to Train Your Dragon (1)
The Sun and the Star
Rick Riordan & Mark Oshiro
Nico Di angelo Adventures (1)