9 from the Nine Worlds
Rick Riordan
Magnus Chase and the Gods of Asgard (5)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Crown of Ptolemy
Demigods and Magicians (3)
The Serpent's Shadow
The Kane Chronicles (3)
How to Be a Pirate
Cressida Cowell
How to Train Your Dragon (2)