The Lost Hero
Rick Riordan
The Heroes of Olympus (1)
The Son of Neptune
The Heroes of Olympus (2)
The Titan's Curse
Percy Jackson and the Olymipans (3)
The Battle of the Labyrinth
Percy Jackson and the Olymipans (4)
The Sea of Monsters
Percy Jackson and the Olymipans (2)
The Last Olympian
Percy Jackson and the Olymipans (5)