Percy Jackson Universe

A low-tech, high-magic modern Earth, where ancient Greek gods, monsters, and demigods walk hidden among mortals. Magic is inherited or divine, hidden from mortal eyes by The Mist, a metaphysical force that clouds mortal perception. Mythology is real, with gods influencing modern events while Olympus floats invisibly above the Empire State Building.

While the world is Earth, certain mythic locations are accessible only to magical beings: Camp Half-Blood – A training camp in Long Island for Greek demigods. Mount Olympus – Now located above the 600th floor of the Empire State Building in NYC. The Underworld – Accessible via entrances like the DOA Recording Studios in Los Angeles. The Sea of Monsters – A mythic sea (Bermuda Triangle) where monsters and ancient creatures reside. Tartarus – A hellish prison beneath the Underworld for monsters and evil gods. Delphi – Site of the Oracle; her spirit is housed at Camp Half-Blood. Various Monster Realms – Lair of Polyphemus, the Labyrinth, etc.

Demigods – Half-mortal, half-god. Divided by parentage and trained at Camp Half-Blood. Gods – Immortal beings with domains over nature, emotions, and cosmic forces. Monsters – Born from primordial chaos or divine punishment. They reform in Tartarus when slain. Cyclopes – One-eyed beings; some are allies (e.g., Tyson), others monstrous. Satyrs – Nature spirits who guide demigods and protect nature. Nymphs – Female nature spirits of trees, rivers, etc. Mortal Humans – Most are unaware of the mythic world due to the Mist. Titans & Giants – Primordial enemies of the gods, from previous ages of war. Primordials – Entities like Gaea (Earth) or Chaos, older than the gods.

Revival of the Titans – Cronus attempts to return and overthrow Olympus (resolved in The Last Olympian). Gaea’s Awakening – Earth goddess Gaea tries to rise and destroy the gods (Heroes of Olympus). Post-War Instability – Monster activity has increased, and minor gods are still resentful of Olympus. Apollo’s Punishment – In Trials of Apollo, the god is cast to Earth as a mortal, reflecting ongoing divine instability. Factions & Minor Gods – Discontent among neglected gods (like Hecate, Nemesis) continues to shape conflict.

Magic is divine in origin. Used by: Gods and Demigods – via innate power or god-given items. Hecate's followers – True magic users (sorcerers/witches). Charmspeak – Used by Aphrodite's children to influence minds. The Mist – Magic veil hiding mythic events from mortals. Religion – The Greek pantheon is real, though worship is rare in modern society. Divine Communication – Occurs via dreams, omens, or Iris-messages (rainbow video calls). The Twelve Olympians Zeus – King of the gods. Hera Poseidon Demeter Athena Apollo Artemis Ares Aphrodite Hephaestus Hermes Dionysus (Mr. D) Minor Gods Hades – God of the Underworld. Hecate – Goddess of magic. Persephone – Queen of the Underworld. Thanatos – God of death. Hypnos – God of sleep. Morpheus – God of dreams. Nemesis – Goddess of revenge. Nike – Goddess of victory. Iris – Messenger goddess. Tyche – Goddess of luck. Pan – God of the Wild. Eris – Goddess of discord Eos, Selene, Helios – Primordial deities

Olympus – Exists in a higher plane but anchored to mortal locations. Underworld – Its own dimension, layered with realms for souls. Tartarus – A deep abyss beneath the Underworld. Sentient and hostile. Dream World – Morpheus controls dreams, and powerful beings can enter dreams. The Labyrinth – A shifting extradimensional maze that spans mortal geography. River Lethe – Causes memory loss; found in both Underworld and Hypnos’ domain.

Titanomachy – War between Titans and Olympians. Gigantomachy – War with the Giants. Age of Heroes – Time of Hercules, Theseus, Perseus. Modern Era – Godly influence hidden; demigods still born. Titan Rebellion (2000s) – Cronus' attempt to return. Second Gigantomachy (2010s) – Gaea’s uprising. Apollo’s Trials – New prophecies emerge; gods become introspective.

Drachmas – Magical gold currency used by gods and demigods. Mortal Economy – Used by demigods in disguise or when interacting with mortals. Trade – Magical items and favors are often bartered (e.g., Hermes' delivery service). Black Market – Magical artifacts and monsters may be sold or traded among monsters and demigods.

Olympian Council – Rules the pantheon; Zeus presides. Camp Half-Blood – Has its own internal rules and leadership (Chiron, Mr. D). Justice – Meted out by gods (often harshly); mortals rarely involved. Adventurers – Demigods are both revered and expendable. Punishments – Eternal torment in Tartarus, transformation, or quests.

Recurring Monsters: Minotaur Hydra Dracaenae Hellhounds (e.g., Mrs. O'Leary, who’s friendly) Cyclopes Empousai (vampire-like) Ladon, Kampe, Scylla, Charybdis Villains: Luke Castellan (demigod turned host of Cronus) Kronos (Cronus) – Titan Lord of Time. Gaea – Primordial Earth Mother. Typhon – Giant storm-monster. Echidna – Mother of monsters. The Giants – Opposed the Olympians in Gaea’s army. Triumvirate Holdings (Roman emperors in later books).