The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
The Fire Within
Chris D'Lacey
Icefire
The Staff of Serapis
Demigods and Magicians (1)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)
The Titan's Curse
Percy Jackson and the Olympians (3)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Last Olympian
Percy Jackson and the Olympians (5)
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Chalice of the Gods
Percy Jackson and the Olympians (6)