A Cipher's Daughter

Bethany Cipher, the daughter of the lying,monstrous, dream demon Bill Cipher. Bill and his daughter have just recently moved to the outskirts of a town called Gravity Falls. Bill now has to disguise himself as a human. Bethany feels no need to change her form, because she already looks like a human. She is half dream demon-half human. She has the powers of her dad and the form of her mom.
Meanwhile, the Pines Twins decide to come back to Gravity Falls and attend Gravity Falls Middle School. the Twins have been having some visions and flashbacks of Bill wondering if he or something of him was still in the town.
Bill has always told Bethany to stay away from the Pines family. Especially Pine Tree and Shooting Star. When Bethany and the Twins have an unexpected encounter, how will is change their future together?