Nightfall
Shannon Messenger
Keeper of the Lost Cities (6)
The Blood of Olympus
Rick Riordan
The Heroes of Olympus (5)
Unraveled
Keeper of the Lost Cities (9.50)
The Demigod Diaries
The Heroes of Olympus (0.0)
How to Train Your Dragon
Cressida Cowell
How to Train Your Dragon (1)