The Titan's Curse: Percy Jackson and the Olympians, Book 3
The Lightning Thief: Percy Jackson and the Olympians, Book 1
The Battle of the Labyrinth: Percy Jackson and the Olympians, Book 4
The Last Olympian: Percy Jackson and the Olympians, Book 5
The Heroes of Olympus, Book One: The Lost Hero
The Son of Neptune: The Heroes of Olympus, Book Two
The Mark of Athena: The Heroes of Olympus, Book 3
The House of Hades: The Heroes of Olympus, Book 4
Percy Jackson & the Olympians: The Demigod Files
The Blood of Olympus: The Heroes of Olympus, Book 5