The Revenge of Echidna

(More charaters) Echidna, Mother of all Monsters, outraged by the slaughter of her children over and over again, wants vengeance. So she decides to not just keep them here in America, she's sending monsters around the globe. Especially in Australia, naming that animal after her. Mortals don't know what's going on and leads to an intresting meeting. PJO Universe after all books.