The owner of the Master Bolt
Zeus
The God of War
Ares
half-bull half-man
Minotaur
The camp Percy spent his summer
Camp Half Blood
daughter of Ares
Clarisse
The owner of the helm of darkness
Hades
The God of Wine
Dionysus
3-headed watchdog
Cerberus
Where you can find The Gateway Arch
St. Louis, Missouri
half-human half-horse
Chiron
The owner of the trident
Poseidon
The Goddess of Wisdom
Athena
the head of a lion,the body and hooves of a giant goat, and a serpent for a tail
Chimera
Contains the Fields of Asphodel, Fields of Punishment, and Elysium
The Underworld
daughter of Athena
Annabeth
The owner of Anaklusmos (a.k.a. Riptide)
Percy Jackson
The Goddess of Love and Beauty
Aphrodite
3 shriveled hags with bat wings
Furies
The latest school Percy was kicked out of
Yancy Academy
daughter of Athena
Annabeth
The owner of the Backbiter
Luke
Goddess of Marriage
Hera
snake woman with human head, snake-like body, and forked tongue
Echidna
Where you can find Mount Olympus
The Empire State Building; 600th Floor
half-goat half-human
Grover