The Lost Hero (Heroes of Olympus Book 1)
2010
The Son of Neptune (Heroes of Olympus Book 2)
2011
Percy Jackson and the Lightning Thief (Book 1)
2008
The House of Hades (Heroes of Olympus Book 4)
2013
The Mark of Athena (Heroes of Olympus Book 3)
2012
Percy Jackson and the Battle of the Labyrinth (Book 4)
2009