The Great Prophecy was a prediction made by the Oracle of Delphi that foretold the rise or fall of Olympus by a child of the Big Three.

The First Great Prophecy was a prophecy given by the Oracle over seventy years ago. Around World War II, when the sons of Zeus (America), Poseidon (Great Britain and the Soviet Union), and Hades (Nazi Germany, Fascist Italy, and Imperial Japan) fought each other, the Oracle foretold of a future event that would end their affairs with mortal women for the next seventy years. The prophecy is revealed in The Last Olympian:

A half-blood of the eldest gods

Shall reach sixteen against all odds

And see the world in endless sleep

The hero's soul, cursed blade shall reap

A single choice shall end his days

Olympus to preserve or raze

Unraveling the Prophecy


Percy, Annabeth, and Luke; the three demigods that fulfilled the prophecy.

  1. Percy is a half-blood child of Poseidon, one of the eldest gods.
  2. Percy turns 16 at the climax of the Battle of Manhattan, despite all his near-death experiences.
  3. Morpheus, god of dreams, put every mortal in Manhattan to sleep.
  4. "The hero" does not refer to Percy, but to Luke, whose soul was reaped by Annabeth's knife, cursed because of Luke's broken promise to Annabeth. He was a hero for eventually destroying Kronos, who was using him as his host.
  5. Percy's choice, to give Luke the knife allowing Luke to kill himself and therefore destroying Kronos, ending Luke's life.
  6. Olympus was preserved because Percy chose to give Luke Annabeth's knife so that Luke could destroy Kronos by cutting his Achilles' heel (under his arm).

The Prophecy of Seven

Main article: The Prophecy of Seven

After the completion of the first Great Prophecy, Rachel Elizabeth Dare took on the spirit of the Oracle of Delphi and spoke a new prophecy, which was declared by Apollo as the second Great Prophecy. This prophecy would later be known as the Prophecy of Seven as the Romans called it.

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.

This prophecy is the driving force behind The Heroes of Olympus series.

Seven of the Prophecy:

Percy Jackson, son of Poseidon, Annabeth Chase, daughter of Athena, Jason Grace, son of Jupiter, Piper McLean, daughter of Aphrodite, Leo Valdez, son of Hephaestus, Frank Zhang son of Mars, and Hazel Levesque, daughter of Pluto.

Percy Jackson (Film Series)

Percy Jackson: Sea of Monsters

The Great Prophecy is told to Percy by the Oracle. She tells him that when a child of eldest gods reaches 16 against all odds, the prophecy will come true. Throughout the movie, it is implied that the cursed blade is Riptide. 


  • The Great Prophecy never says that a child of the Big Three would be the one mentioned in the prophecy, only that it would be a child of the eldest gods. Because 'gods' can be considered a gender neutral term in some cases, this could mean that any demigod child of the original Olympians could be the one mentioned in the prophecy, including children of Demeter.
    • However the term 'gods' is usually attributed to the male gods, which is why only the children of Zeus, Poseidon, and Hades are the focus of the prophecy.

See also

Percy Jackson and the Olympians
Core Series: The Lightning Thief | The Sea of Monsters | The Titan's Curse | The Battle of the Labyrinth | The Last Olympian
Main Characters: Percy Jackson | Grover Underwood | Annabeth Chase | Tyson | Clarisse La Rue | Thalia Grace | Nico di Angelo | Chiron | Luke Castellan | Rachel Elizabeth Dare
Minor Characters: Travis Stoll | Connor Stoll | Mrs. O'Leary | Silena Beauregard | Charles Beckendorf | Sally Jackson | Paul Blofis | Blackjack | Zoë Nightshade | Bianca di Angelo | Juniper | Michael Yew | Ethan Nakamura
Olympian Gods: Zeus | Hera | Poseidon | Demeter | Ares | Athena | Apollo | Artemis | Hephaestus | Aphrodite | Hermes | Dionysus | Hades | Hestia
Minor Gods: Amphitrite | Ariadne | Hecate | Iris | Janus | Morpheus | Nemesis | Pan | Persephone | Triton
Titans: Kronos | Atlas | Calypso | Iapetus | Krios | Hyperion | Oceanus | Prometheus
Related Content: Rick Riordan | The Lightning Thief (film) | The Sea of Monster (film) | The Demigod Files | Demigods and Monsters | The Ultimate Guide | The Heroes of Olympus
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