The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
The Red Pyramid
The Kane Chronicles (1)
Lodestar
Shannon Messenger
Keeper of the Lost Cities (5)
The Blood of Olympus
The Heroes of Olympus (5)
The Demigod Diaries
The Heroes of Olympus (0)
The House of Hades
The Heroes of Olympus (1)
The Lost Hero
The Mark of Athena
The Heroes of Olympus (4)
The Son of Neptune
The Heroes of Olympus (2)