Trials of Apollo 4.5: Camp Jupiter Classified
Rick Riordan
Trials of Apollo (4.5)
Trials of Apollo 4: The Tyrant's Tomb
The Trials of Apollo (4)
The Sword of Kaigen: A Theonite War Story
M. L. Wang
The Mark of Athena
Heroes of Olympus (3)
The Throne of Fire
The Kane Chronicles (2)