How to Train Your Dragon
Cressida Cowell
How to Train Your Dragon (1)
The Fire Within
Chris D'Lacey
The Burning Maze
Rick Riordan
The Trials of Apollo (3)
The Serpent's Shadow
The Kane Chronicles (3)
The Lost Hero
The Heroes of Olympus (1)
The Demigod Diaries
The Heroes of Olympus (0)
The Blood of Olympus
The Heroes of Olympus (5)
The House of Hades
The Mark of Athena
The Heroes of Olympus (4)
The Son of Neptune
The Heroes of Olympus (2)