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Heroes of Olympus

Heroes of Olympus is a five-book fantasy series by Rick Riordan and the second major series in his Camp Half-Blood Chronicles.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Heroes of Olympus is a five-book fantasy series by Rick Riordan and the second major series in his Camp Half-Blood Chronicles. It follows Greek and Roman demigods who must unite to stop the earth goddess Gaea from awakening and destroying the world.

Premise

The series follows a prophecy about seven demigods who must unite to prevent Gaea from rising. The plot combines characters from Camp Half-Blood and Camp Jupiter, bringing Greek and Roman demigods into the same conflict.

Publication history

The first novel, The Lost Hero, was published in 2010, and the final novel, The Blood of Olympus, appeared in 2014. The series was written by American author Rick Riordan.

Books in the series

The five main titles are The Lost Hero, The Son of Neptune, The Mark of Athena, The House of Hades, and The Blood of Olympus.

Place in the Riordan universe

Heroes of Olympus follows Percy Jackson & the Olympians and is part of the Camp Half-Blood Chronicles. It is followed by The Trials of Apollo and later Riordan-related series.

Key facts

  • The series consists of five novels published between 2010 and 2014.
  • It features both Greek and Roman mythology.
  • The story centres on seven demigods working together against Gaea.
  • It introduces Camp Jupiter and several new main characters.
  • The books are part of Rick Riordan's larger Camp Half-Blood Chronicles.
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Canadian context

The series is widely read in Canada as part of school, library, and general young-adult fantasy collections, and it is available from Canadian booksellers and publishers.

Frequently asked questions

Who wrote Heroes of Olympus?
It was written by Rick Riordan.
How many books are in the series?
There are five main books in the series.
What is the first book?
The first book is The Lost Hero.
What is the last book?
The last book is The Blood of Olympus.
What mythology does it use?
It blends Greek and Roman mythology.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/The_Heroes_of_Olympus
    Supports: Series title, five-book structure, publication dates, plot overview, and place in the Camp Half-Blood Chronicles.
  2. Encyclopaedia Britannicahttps://www.britannica.com/topic/Heroes-of-Olympus
    Supports: Author attribution, series format, and relationship to the Percy Jackson books.
  3. Wikipediahttps://en.wikipedia.org/wiki/Percy_Jackson_%26_the_Olympians
    Supports: Predecessor series and contextual placement within the Camp Half-Blood Chronicles.