Safe and Sound

So this is a really quick lil thing bc I had an idea that I wanted to get out there but basically Mabel had a nightmare about Bill being in Dippers body again, but this time it’s different and she’s left with two choices, kill him or risk the end of the world (or just gravity falls) so she goes with option one and somehow Dipper is still alive but dying fast. Then she wakes up sees he’s okay and is relieved until her nightmare comes true. And the reson it starts how it does is because nightmares and dreams