The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
The Last Olympian
Percy Jackson and the Olympians (5)
The Lightning Thief
Percy Jackson and the Olympians Book (1)
The Lost Hero
Heroes of Olympus (1)
The Red Pyramid
The Sea of Monsters
Percy Jackson and the Olympians Book (2)
The Throne of Fire
Kane Chronicles (2)
The Titan's Curse
Percy Jackson and the Olympians (3)