in a alternate universe You're Percy is the son of Hades instead of the son of Poseidon, who a idiot guy name Nick Watterson, an idiotic 12-year-old modern demigod. In this universe and timeline are still the same just some changes. Like Nick is the son of Poseidon and not much good as Percy. Percy is the son of Hades and still a badass. Everything is just like the books. Good luck and be a hero.