When Jupiter/Zeus falls in love with the famous actress Beryl Grace and sires 3 kids, Thalia, Jason and Perseus he leaves. But when Beryl goes to pick Jason up from school and a car crash commences both the actress and Jason are killed. Thalia searches for Percy but she is not sure where he is.. so she runs away. Little does she know Percy was wished away by Jupiter to be trained by Lupa and becomes a badass Roman.