There are 5 books in the The Heroes of Olympus series. The newest book is The Blood of Olympus which came out in 2008.
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The Son of Neptune
The SECOND title in this number one, bestselling spin-off series from Percy Jackson creator, Rick Riordan.
This crazy messed up world of gods and monsters is Percy Jackson's reality, which pretty much sucks for him.
Percy Jackson, son of Poseidon, God of the Sea, has woken from a very deep…
The Mark of Athena is the explosive third part in Rick Riordan's number one series - Heroes of Olympus.
ONE FATAL PROPHECY
SEVEN BRAVE DEMIGODS
A QUEST TO FIND - AND CLOSE - THE DOORS OF DEATH.
Annabeth felt as if someone had draped a cold washcloth across her neck.…
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The House of Hades
The House of Hades is the fourth book in the bestselling Heroes of Olympus series, set in the action-packed world of Percy Jackson.
The stakes have never been higher. If Percy Jackson and Annabeth fail in their quest, there'll be hell on Earth. Literally.
Wandering the deadly realm of Tartarus,…
The Blood of Olympus is the fifth book in the bestselling Heroes of Olympus series - set in the high-octane world of Percy Jackson.
Though the Greek and Roman crew members of the Argo II have made progress in their many quests, they still seem no closer to defeating the…