The Titan's Curse
Rick Riordan
Percy Jackson (3)
The Sea of Monsters
Percy Jackson (2)
Maze of Bones
The 39 Clues (1)
The Lost Hero
The Heroes of Olympus (1)
The Lightning Thief
Percy Jackson (1)
The Last Olympian
Percy Jackson (5)
The Battle of the Labyrinth
Percy Jackson (4)