*Sorry for the delay just needed to get some inspiration 

While everyone was working to "save" Dipper, Mabel was left to her own devices. She didn't help out instead she just did whatever she wanted. She drank some booze that she always added to her Mabel juice not that anyone noticed. Even if they did, she'll just say that Dipper did it. She always made Dipper out to be the bad kid. When in actuality, She was the bad kid. When no one was looking She always beat up Dipper. That wimp as she called it, didn't even touch her. She knew how to work everything to her advantage. Once she payed some men to cut Dipper in order to teach him a lesson about telling the truth. He'll always be a toy in her eyes and she will always be the angel everyone pictured her to be. It was exciting that she got away with things while her brother suffered. He'll come back to her and everything will go back to normal for her anyway.

Meanwhile, Dipper was led to a dark room only lit with torches. The torches were lit with a green fire that made things even more scary. He was having second thoughts, but wanted to get through it in order to get his sweet revenge. Bill instructed Dipper to get into the middle of a circle with weird symbols on it. When he stepped in the middle, Bill started to work on a portion that would help him transition to a demon. Once he was finished, Bill went to Dipper. 

"Now Pinetree! Once you drink this, you will feel lots of pain. You won't be able to become human again and you'll be stuck with me for all of eternity!!!"Bill said with a gleeful smile. He was excited because he'll finally have someone to keep him company. He also wanted Dipper to become his possession for him to shape into anything he wished. Dipper took the cup and started to drink it. He finished it and then was hit with pain. Bill started to chant and the symbols glowed and started to build a barrier. Dipper had to be contained so his raw power won't destroy the world before Bill could himself. Luckily Dipper passed out and Bill will finally have his perfect companion. 

Author POV:

Hey!!! I'm thinking of rewriting the last chapter. 

Do U want more Mabel moments to understand how terrible she is?

Don't worry the violence will pick up after this!! Mainly on the resistance, but also on Dippee to!! Bye 👋