The World We're From

The Gleeful Twins are known to be Gravity Fall's renowned celebrities and occult experts, so when Gideon and Pacifica start unraveling secrets and attracting supernatural attention to themselves, they take notice. In Mabel's case, in more ways than one. With the return of an old foe, how will the four teens fare? Slow-build Mabifica, Wendip and others(Reverse Pines AU)