When Gravity Falls and Earth becomes Sky

Fear the beast with just one eye. Everyone has a purpose in life. My purpose happens to be a search for a sense of self. This led me to the sleepy town of Gravity Falls Oregon in search of my Grandfather, Stanford Pines. Stanford was a hero to me, we're both so similar to each other, it's like I've finally found a place where I belong. Nothing could ruin this... ** This fic is set in gravity falls the summer after weirdmageddon, it strays a bit from the canon obviously because it's a fanfic, it's not gonna be 100% canon. Bill Cipher will be a major part in this fic bc yass! Mabel and Dipper are 13, the reader is 19 I'm trying to make it as gender neutral as possible but I am a female so low key writing it with female in mind, but anyone can read! It's not gender specific. The reader uses they/them pronouns but you can just sub them for whatever pronouns you want to use ?