Unraveled
Shannon Messenger
Keeper of the Lost Cities (9.5)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
Lodestar
Keeper of the Lost Cities (5)
Camp Half-Blood Confidential: Your Real Guide to the Demigod ...
Rick Riordan
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero
The Heroes of Olympus (1)
The Demigod Files
Percy Jackson and the Olympians (4.5)