Hero's Guide to Deadly Dragons
Cressida Cowell
How to Train Your Dragon (6)
How to Steal a Dragon's Sword
How to Train Your Dragon (9)
The Mark of Athena
Rick Riordan
The Heroes of Olympus (4)
How to Twist a Dragon's Tale
How to Train Your Dragon (5)
How to Be a Pirate
How to Train Your Dragon (2)