The Tower of Nero
Rick Riordan
The Trials of Apollo (5)
The Tyrant's Tomb
The Trials of Apollo (4)
The Burning Maze
The Trials of Apollo (3)
Gregor and the Curse of the Warmbloods
Suzanne Collins
Underland Chronicles (3)
The Sun and the Star
Rick Riordan & Mark Oshiro
The Nico Di Angelo Adventures (1)