The Burning Maze
Rick Riordan
Trials of Apollo (3)
The Dark Prophecy
Trials of Apollo (2)
The Hidden Oracle
Trials of Apollo (1)
The House of Hades
The Heroes of Olympus (4)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero
The Heroes of Olympus (1)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Blood of Olympus
The Heroes of Olympus (5)