pjo

Percy Jackson: The main hero and son of Poseidon.Annabeth Chase: A smart warrior and daughter of Athena.Luke Castellan: A counselor and son of Hermes who turns against the gods.Thalia Grace: A strong fighter and daughter of Zeus.Nico di Angelo: A brooding boy and son of Hades.Clarisse La Rue: A tough camper and daughter of Ares.Tyson: Percy's loyal cyclops brother.Friends and AlliesGrover Underwood: A satyr and Percy's best friend.Sally Jackson: Percy's kind and loving mortal mother.Chiron: A centaur who trains heroes at Camp Half-Blood.Mr. D (Dionysus): The grumpy head of Camp Half-Blood.