The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
The Lost Hero
The Heroes of Olympus (1)
Inheritance
Christopher Paolini
The Inheritance Cycle (4)
The Fork, the Witch, and the Worm
Christopher Paolini & Angela Paolini
The Inheritance Cycle (4.5)
The Titan's Curse
Percy Jackson and the Olympians (3)