How to Train Your Viking
Cressida Cowell
How to Train Your Dragon (1.5)
The Burning Maze
Rick Riordan
The Trials of Apollo (3)
Bilbo's Last Song
J.R.R. Tolkien
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Red Pyramid
The Kane Chronicles (1)
The Serpent's Shadow
The Kane Chronicles (3)
The Throne of Fire
The Kane Chronicles (2)