How to Train Your Viking
Cressida Cowell
How to Train Your Dragon (1.5)
Camp Jupiter Classified
Rick Riordan
The Trials of Apollo (4.5)
Flashback
Shannon Messenger
Keeper of the Lost Cities (7)
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Blood of Olympus
The Heroes of Olympus (5)
The House of Hades
The Heroes of Olympus (1)
The Mark of Athena
The Heroes of Olympus (4)
The Demigod Diaries
The Heroes of Olympus (0)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero