The Wyrm King
Tony DiTerlizzi & Holly Black
Wrath of the Triple Goddess
Rick Riordan
Percy Jackson and the Olympians (7)
The Field Guide
The Spiderwick Chronicles (1)
How to Seize a Dragon's Jewel
Cressida Cowell
How to Train Your Dragon (10)
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero
The Heroes of Olympus (1)
The Demigod Files
Percy Jackson and the Olympians (4.5)