Prolouge

Mabel and Dipper went back to Gravity Falls for the summer and found out a new person has moved to town, but strange things start happening once they get involved. Can they solve this mystery? Or will a familier yellow triangle need to help them find the answers to what happened when they were gone? This is my own AU. The ship in this story is Grunkle Stan x Bill Cipher. I made this AU based on a reddit post about a theory on why Pacific's hair is blonde. TW:KIDN@PPING, VIOLENCE, WEAPONS, MINOR SEXUAL THEMES.