The Pines are back in Gravity Falls, but so is Bill Cipher, who insists that he and Dipper must work together for their mutual benefit. Dipper has understandable trust issues. BillDip, and mentions of BillFord.

Bill Cipher and Dipper Pines have a deal. In order to protect his family, Dipper agrees to become Bill's apprentice. But at what cost? What other secrets is Bill hiding behind his past? Who should Dipper fear? Bill or himself?

Dipper had one simple mission. Help destroy Bill. But he couldn't kill anyone! Killing Bill was what was supposed to happen. What actually happened was much more than he could expect. Now he has some of Bill's powers, nearly everyone hates him, and he has a human Bill by his side. What could possibly happen? BillDip. Cover pic by cjs-scribbles on Tumblr.

Dipper: Darkness consumed me and all of my thoughts. Twisting and mixing all I know, everything I've learned… I felt the cold hard ground scraping at my knees and the eyes of 13 demons taking pleasure in my despair. The hands that were grabbing my wrist to keep me up tightened. I squeeze my eyes shut wishing this was all just a dream but I knew it wasn't. Trigger warning.

"Stanleys recovered memories weren't enough to bring me back." Of course this wasn't the reason. "It was you, Pine Tree. You and your strange obsession with me." No need to tell him. Dipper knew. It was his fault entirely. "Dipper Pines, you are truly messed up." (BillDip - Warnings at the beginning of the first chapter!)

"You have no idea," he breathed into her neck, midst small bites, "how long I've craved you." Female!Dipper/ Bill

Dipper had sacrificed so much for his sister, and all he got in return was a replacement that was much cooler than what he really was. He was a bad person wasn't he? "I can put you in a bubble just like this one but your own, how about it? Is it a deal?"

When billionaire Bill Cipher seems to be getting away with murder, P.I. Stanford Pines sends his nephew Detective Dipper Pines under cover to a club that is owned by Bill, where occasionally people that go in, never come out. Dipper finds more than he ever thought he would, and becomes involved in the world of demons, whether he likes it or not. Billdip

"Unlike the Stan twins, the Pines twins can be a threat when together. Better to be safe than sorry and break Pine Tree to a point where even if Shooting Star is freed, they can't stop me."

Dipper and Mabel Pines have always been able to get out of bad situations. But eventually, they get into one so bad that it takes a certain dream demon to rescue them, and his services are not free. And the payment he asks for will change their lives forever. BillDip, Mabifica later, rated mature for strong language, extreme violence, blood, gore, and sexual content. Now complete.