The Titan's Curse
Rick Riordan
Percy Jackson and the Olympians (3)
Lost Hero, The
The Lightning Thief
Percy Jackson and the Olympians (1)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Last Olympian
Percy Jackson and the Olympians (5)
The Demigod Files
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)