1. The Sea of Monsters
2. The Titan's Curse
3. The Battle of the Labyrinth
4. The Demigod Files
5. The Last Olympian
6. The Lost Hero
7. The Son of Neptune
8. The Mark of Athena
9. The House of Hades
10. The Blood of Olympus
11. The Hidden Oracle
12. The Dark Prophecy
13. The Burning Maze
14. The Tyrant's Tomb
15. The Tower of Nero