11 titles
The Sea of Monsters
Rick Riordan · 2005
The Lightning Thief
Rick Riordan · 2005
The Titan's Curse
Rick Riordan · 2007
The Battle of the Labyrinth
Rick Riordan · 2005
The Last Olympian
Rick Riordan · 2009
Percy Jackson's Greek Gods
Rick Riordan · 2006
The Blood of Olympus
Rick Riordan · 2001
The Demigod Files
Rick Riordan · 2009
Demigods & magicians
Rick Riordan · 2000
Demigods and Monsters
Rick Riordan · 2008
The lightning thief
Robert Venditti · 2005
