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