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The Heroes of Olympus is a book fandom. It is the second series of the Camp Half-Blood Chronicles, and is followed by Trials of Apollo.


This field contains content from Riordan Wiki.

The main focus of The Heroes of Olympus is the Prophecy of Seven:

"Seven half-bloods shall answer the call,

To storm or fire, the world must fall.

An oath to keep with a final breath,

And foes bear arms to the Doors of Death."

  1. The first line refers to seven half-bloods that will try and save Olympus from Gaea and her most powerful children, the Gigantes. The seven half-bloods are, Jason Grace, Leo ValdezPiper McLeanPercy JacksonAnnabeth Chase, Hazel Levesque, and Frank Zhang.
  2. The second line refers to either Leo or Jason were destined to defeat Gaea. Leo, with the help of Jason, Piper, and the recently rebuilt Festus, was able to defeat Gaea, dying in the process (although he came back to life later using the Physician's Cure).
  3. Leo, who died after defeating Gaea, was brought back to life with the use of The Physician's Cure. The explosion sent Leo and Festus (with his body rebuilt) to Ogygia, where Leo reunited with Calypso and completed the oath he made to take her out of the island.
    1. This could also be Bob's brief promise in The House of Hades to keep Percy and Annabeth safe. He and Damasen most likely died in the end, making it the "final breath".
  4. Gaea opened the Doors of Death to allow the most evil beings of the Underworld to rise again and monsters to revive quicker. During The House of Hades, Percy, Annabeth, the Titan Iapetus, and the peaceful Giant Damasen (with the help of his eternal foe, the Maeonian drakon) all meet at the Doors of Death. Giants, Titans, and demigods are normally enemies, but they worked together to seal the Doors of Death, preventing Gaea from reviving her forces.

The Seven

Other Supporting Characters

  • Reyna Avila Ramírez-Arellano - Roman demigod and daughter of Bellona.
  • Nico di Angelo - Greek demigod and son of Hades.
  • Octavian - Roman descendant of Apollo and one of the major villains of the series.
  • Gleeson Hedge - Satyr and protector of The Seven.
  • Ella - Harpy from Camp Jupiter who has the knowledge of the Sibylline Books.

List of Ships

Het Ships

Slash Ships

Femslash Ships




  • This is the first series by Rick Riordan which introduces Roman demigods and legacies.

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