13 titles
House of Hades
Rick Riordan · 2013
The Lost Hero
Rick Riordan · 2010
The Mark of Athena
Rick Riordan · 2011
The Hidden Oracle
Rick Riordan · 2016
The Red Pyramid
Rick Riordan · 2010
The Sword of Summer
Rick Riordan · 2015
The Dark Prophecy
Rick Riordan · 2017
The Burning Maze
Rick Riordan · 2018
The Throne of Fire
Rick Riordan · 2011
The Hammer of Thor
Rick Riordan · 2016
The Tyrant's Tomb
Rick Riordan · 2019
The Ship of the Dead
Rick Riordan · 2017
