You've recently moved to a sleepy town called Gravity Falls, in Oregon, and for the last few days, and you've been getting the lay of the land. After you finish setting up your house, you decide to go out into a forest for some god forsaken reason. Whats weird about thos time is, all the trees have eye shaped markings on them, but it wasn't like that before... how strange.

To add onto this, the color had gotten more and more faded as you kept going through the forest, and it gets more cold as you go. You suddenly come across a strange altar, with a marking of a hand, implying you should place your hand there. Curiously, you do so. And suddenly, everything starts slowing down, and in a flash of light, a weird, triangle shaped figure appears, cackling with sadistic glee.

"FINALLY, The day 1 TRILLION YEARS PROPHESIED HAS FINALLY COME TO FRUITION! It's finally happening, THE WORLD IS FINALLY MINE!"

Bill rises in the air as a tear in the reddened sky illuminates over you. You run back to the main area of the city to get a good view of the commotion, and Bill has already taken his physical form, hovering over all the townsfolk.

"ALRIGHT, LISTEN UP YOU ONE LIFESPAN, THREE DIMENSIONAL, FIVE SENSE SKIN PUPPETS! For one trillion years I've been trapped in my own decaying dimension, waiting for a new universe to call my own. Name's Bill! But you can call me your new lord and master for all of eternity!"