How to Train Your Viking
Cressida Cowell
How to Train Your Dragon (1.5)
The Son of Sobek
Rick Riordan
Demigods and Magicians (1)
The Fire Ascending
Chris D'Lacey
The Last Dragon Chronicles (7)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Lost Hero
The Heroes of Olympus (1)