The Dark Prophecy
Rick Riordan
The Trials of Apollo (2)
Unraveled
Shannon Messenger
Keeper of the Lost Cities (9.5)
Unfinished Tales
J. R. R. Tolkien
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Lightning Thief
Percy Jackson and the Olympians (1)