Dippered (Dipper X Reverse Dipper)
A new threat faces Gravity Falls and the twins are now 15. Bill ends up still being alive... and that's a good thing? Turns out the floating yellow triangle is an important piece to the puzzle they need to complete in order to save the small Organ town this time. That's not all though! They need each other, Bill, Pacifica Northwest, Gideon Gleeful, and their reverse selves... the reverse twins, Will, Pacifica Southeast, and Gideon Pines! Will they defeat this new foe? Or will the challenge be to great?
Just remember! This is Gravity Falls! Any thing can happen!