Percy Jackson's Greek Heroes
Rick Riordan
The Sea of Monsters
Percy Jackson and the Olympians (2)
How to Steal a Dragon's Sword
Cressida Cowell
How to Train Your Dragon (9)
How to Cheat a Dragon's Curse
How to Train Your Dragon (4)
The Sun and the Star
Rick Riordan & Mark Oshiro
Nico Di angelo Adventures (1)
The Tower of Nero
The Trials of Apollo (5)