Nightfall
Shannon Messenger
Keeper of the Lost Cities (6)
The Burning Maze
Rick Riordan
The Trials of Apollo (3)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Tyrant's Tomb
The Trials of Apollo (4)
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 Demigod Files
Percy Jackson and the Olympians (4.5)
The Last Olympian
Percy Jackson and the Olympians (5)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)