The Crown of Ptolemy
Rick Riordan
Demigods and Magicians (3)
The Ironwood Tree
Tony DiTerlizzi & Holly Black
The Spiderwick Chronicles (4)
The Blood of Olympus
The Heroes of Olympus (5)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Chalice of the Gods
Percy Jackson and the Olympians (6)
How to Break a Dragon's Heart
Cressida Cowell
How to Train Your Dragon (8)