The Serpent's Shadow
Rick Riordan
The Kane Chronicles (3)
How to Train Your Dragon
Cressida Cowell
How to Train Your Dragon (1)
The Throne of Fire
The Kane Chronicles (2)
The Lost Hero
The Heroes of Olympus (1)
How to Twist a Dragon's Tale
How to Train Your Dragon (5)
How to Be a Pirate
How to Train Your Dragon (2)