I know I shouldn't be working on three fan fiction's at once but… I just couldn't resist myself to write a Gravity Falls fanfiction! I was too weak to resist the temptation.
Gravity Falls Maximum State prison.
Gideon was having the most wonderful dream. He was flying on his own personal plane Mable on his right side both of them watching the sunset together. "Oh Gideon I'm so glad you took me flying this evening, the sunset's beautiful." Mable said "that's not the only thing that's beautiful tonight." Gideon replied with a wink. He leaned in to kiss her when an alarm started beeping, "something must be wrong with the plane I'll go cheek it out." Mable waved goodbye, "I'll be waiting." She said and blew him an air kiss, but he was already gone.
Gideon walked into the cockpit annoyed. "What's so important that you had to interrupt me father." Bud Gleeful frowned, "it's horrible Gideon just horrible. The world is falling apart just look!" Gideon looked outside the cockpit window the world was slowly disintegrating from the top downwards. "wh-what's going on, why's this happening." The sky was completely gone now reveling a giant yellow triangle with an eye and a top hat. "Hey Gideon," Bill said, "Miss me?"
"Why're you doing here demon." Gideon said boldly Bill replied, "Why else would I be here, I'm here to make deals of course!" Gideon frowned, "what could I give you; I'm in a dream and trapped in a cell." Bill smiled, "What I need is just a trifle compared to what I could give you. Here's the deal, I will give the Pines family the most agonizing nightmare's I can for the next few weeks, slowly weakening their minds and making them question their own sanity. In return I get a human vestal from you, so," his hand glowed blue, "do we have a deal?" Gideon grinned, he could give Bill the body of a guard making himself free as a bird, and with the pine's out of the way, nothing could stop him from exploiting the secrets of the universe! He grabbed the glowing blue hand, "you've got a deal demon."