Hey guys! This will be my very first fanfiction! I'm really nervous, but hopefully you will like it… I have watched Blue Exorcist and Gravity Falls OVER AND OVER AND OVER AGAIN, so I think I can pull this off *sweat drops*.

Just so you guys know, Rin and the rest of the Blue Exorcist cast will not be in this story. The person from it is Satan. That may be confusing now, but just read and you'll understand.

ANYWAY! Please Read and Review, and if you want to flame, I don't care, Just know you are wasting your time!

Disclaimer: I don't own Blue Exorcist or Gravity Falls.

As much as Dipper and Mabel loved the strange and mysterious Gravity falls, the summer had to end and they had to go back to the world of school, bullies, and iphones. Once they got home to California, the twins told their parents all about their amazing adventures.

Their parents, on the other hand thought this was too dangerous for their children to be running around with strange gnomes trying to date their 12, now thirteen, year old daughter and giant beasts trying to make Dipper a "Man".

Like he could ever be one.

To children's despair, they were not allowed back the next summer… or the next… It was horrible. At least they wrote letters all the time.

After a couple years, fewer and fewer letters came and went in the mail until they eventually stopped. Dipper got too invested in school and Mabel was too invested in boys. The supernatural at Gravity Falls seemed more like a faded dream….

~~~Present Day~~~

Dipper and Mabel were now 19 years old, Dipper had been accepted into M.I.T.

due to his amazing brain, just like his uncle Ford. Mabel was going to wait a few years before heading into college. It just seemed too much for her.

She had just recently gotten a new boyfriend. Honestly, he was just an asshole… Mabel had always fallen for the really weird guys or the jackasses who only wanted her for her body. They disgusted Dipper. But hey, it was her life.

Dipper was laying in his bed in the dorm room he shared with his friend Michael. He had was sound asleep, his chest rising up in down. He had a dream… but it didn't feel like a dream.

Everything was black. He felt like he was just floating, not knowing what was up or down. It felt oddly familiar… like he had been there before.

The dream scape

His tensed, realizing where he was. The only reason he would be here is if…

"Dipper."

Dipper turned around as quickly as he could, I mean come on, it's kinda hard when you are floating. There sat a blue flame. It looked just like Bill's, but… it was a little darker.

"Bill… why are you here? Didn't we get rid o-"

He was cut off by the voice again.

"No… not Bill. I am someone you should fear though."

"Who are you? How did you bring me here?" He asked, his eyes narrowing in suspicion. Not that it could be seen. Dipper wasn't the scared, scrawny 12 year old he used to be. He was 19, had a strong build, and even a little bit of stubble on his chin. Plus, they defeated Bill. What else could be thrown at him?

"You will find out eventually… but for now, I need your help."

Dipper rolled his eyes. "And why would I he-"

"Because we have a common enemy" The voice said, cutting him off again. Dipper was really getting annoyed now.

"And who is this 'common enemy?'" He asked putting up air quotes with his hands. Why did he keep doing this when nobody could wee him? It's not like this was some story some weird, angsty teenage girl was writing and people were reading his every movements. Pfft, that would be insane.

The voice said one thing that made Dipper freeze in place and his eyes widen.

"Bill is back"

It's over! I am super excited for this to go up and see what happens. Don't worry, this will continue, I just want to wait for some reviews and see what people think I should add or take out. I hope you enjoyed and stay for the ending! I want this too continue for a LOOOOONG time, so don't worry about it ending early or me just abandoning it. Not gonna happen.

Love ya peeps!

~Nevermore