How to Speak Dragonese
Cressida Cowell
How to Train Your Dragon (3)
The Tower of Nero
Rick Riordan
The Trials of Apollo (5)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
The Son of Neptune
The Heroes of Olympus (2)
Keeper of the Lost Cities
Shannon Messenger
Keeper of the Lost Cities (1)
Exile
Keeper of the Lost Cities (2)
Everblaze
Keeper of the Lost Cities (3)
Nightfall
Keeper of the Lost Cities (6)
Flashback
Keeper of the Lost Cities (7)