it was an ordinary day in gravity falls you were playing hide and seek with dipper and mabel when you stumble across dippers journal as you knock it to the ground it lands on a page about bill cypher a long forgotten demon you had heard of bill but only as a story your cousins told you you didn't think he was real as you start to read the incantation out Loud the world becomes black and white

Bill Cypher: whoa.... I'm back?! I've been remembered I can finally get my revenge on the pines family!!!