imagine a world, well worlds, being taken over by two insanely, psychopathic "businessmen", namely Vlad Masters and Magnacat.. in a simple yet deadly alliance they made to help each other achieve their desires, human, ghost and the monster world domination, along with the help of villainous ghost, hungry dark phantoms, evil monsters and many more .. How can our young group of heroes cooperate to stop this greater evil? monsters allergy x Danny Phantom crossover Four years after Phantom Planet and the Hundred and First Door. Considering they happened both at the same year