Mad Science Cleo and Ghoulia : Homework can be such a monster, but it is always easier with a study partner! These ghouls have paired up to help each other ace their hairy classes. BFFs (Beast Friends Forever) Cleo de Nile and Ghoulia Yelps will stay safe wearing creep-tastic goggles and lab coats as they concoct solutions and super grades in Mad Science class.