The House of Hades
Rick Riordan
The Heroes of Olympus (1)
The Wyrm King
Tony DiTerlizzi & Holly Black
How to Train Your Dragon: 12
Cressida Cowell
How to Train Your Dragon (12)
The Fire Ascending
Chris D'Lacey
The Last Dragon Chronicles (7)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco