How to Train Your Viking
Cressida Cowell
How to Train Your Dragon (1.5)
The Staff of Serapis
Rick Riordan
Demigods and Magicians (1)
The Dark Prophecy
The Trials of Apollo (2)
Everblaze
Shannon Messenger
Keeper of the Lost Cities (3)
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)