Que Horrifico 311pages on this wiki Edit History Talk0 In the Online Game. Que Horrifico was a monster wearing a mayan mask, mexican pancho over wrappings which covers his pale skin. He can spookify kids and order them around. Thanks to the kids, he was caught, and was Freds tutor, Mary Anne Gleardan. Retrieved from "http://scoobydoomysteryincorporated.wikia.com/wiki/Que_Horrifico?oldid=5611"