The Chalice of the Gods
Rick Riordan
Percy Jackson and the Olympians (6)
The Hidden Oracle
The Trials of Apollo (1)
The Mark of Athena
The Heroes of Olympus (4)
Camp Jupiter Classified
The Trials of Apollo (4.50)
The Demigod Files
Percy Jackson and the Olympians (4.50)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Lost Hero
The Heroes of Olympus (1)
The Demigod Diaries
The Heroes of Olympus (0.0)
The Red Pyramid
The Kane Chronicles (1)