Keeper of the Lost Cities
Shannon Messenger
Keeper of the Lost Cities (1)
Icefire
Chris D'Lacey
The Mark of Athena
Rick Riordan
The Heroes of Olympus (4)
How to Break a Dragon's Heart
Cressida Cowell
How to Train Your Dragon (8)
The Serpent's Shadow
The Kane Chronicles (3)
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero
The Heroes of Olympus (1)