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