The Battle of the Labyrinth
Rick Riordan
Percy Jackson & The Olympians (4)
The Blood of Olympus
Heroes of Olympus (5)
The House of Hades
Heroes of Olympus (4)
The Last Olympian
Percy Jackson & The Olympians (5)
The Lightning Thief
Percy Jackson & The Olympians (1)
The Lost Hero
Heroes of Olympus (1)
The Mark of Athena
Heroes of Olympus (3)
The Red Pyramid
The Kane Chronicles (1)
The Sea of Monsters
Percy Jackson & The Olympians (2)
The Serpent's Shadow
The Kane Chronicles (3)
The Son of Neptune
Heroes of Olympus (2)
The Throne of Fire
The Kane Chronicles (2)
The Titan's Curse
Percy Jackson & The Olympians (3)