Ok first time doing a gravity falls fanfic so tell me what you think!! Bill cipher has been banished to the nightmare realm, but he's escaped and pledged vengeance on the pines family. With a new vessel that the pines family don't recognize Bill is slightly invisible in Gravity Falls, Everything changes when Mabel begins to fall for Bill in his new form. How does this affect Bills revenge, when he starts to fall for Mabel as well?