Slight AU where the twins don’t return to Gravity Falls till after they finish high school, and have had little to no contact with anyone there since they left right after the Transcendence.

By the time they go to move in with Grunkle Stan, “Alcor” has already made himself a nasty reputation. After an accidental eavesdropping, Mabel and Dipper find out that the residents of Gravity Falls (even their friends) are just as scared of him as the rest of the world; so they do their best to keep Dipper’s identity a secret, writing him off as a ghost (since they already know that he’s still somehow around).

Only of course, some shit goes down and Dipper has to step in to protect their asses at some point – and in doing so, blows his cover. There would be a lot of angsty tension between them and everyone else, and even people like Wendy and Soos would be really hesitant for a while, but they’d eventually come around. The rest of the town… would take a bit longer. Dipper would probably be a lot more reserved and possibly a bit more demon-like due to the fact that he has been far more reclusive.

AU where Mark and Anna fully accept Dipper post-transcendence. Mabel shouting: “MOOOM, DIPPER’S BEING A JERK WITH DEMON POWERS”. Anna making deals to have him magically clean the dishes, Mark helping him with dressing up formal. “You’re grounded. Go to the binding circle in the corner of the living room!”

transcendence-au:

Mod H is fairly certain that this is basically what’s happening in the post-RRR fics right now, though Mod M is probably better suited to discuss that.

Mod M: Yes, that’s something I’m working on, just not with Mark and Anna! I have a fic in the works right now that is basically about Dipper and Belle’s dad having to come to terms with Dipper’s true identity (and figure out how to be a good parent to a kid who is simultaneously a twelve-year-old dork and an ageless, ancient being of nearly unlimited power).

i need that au tho, the parents giving an allowance of sorts to keep him corporeal before he knows how to do it on his own, making him go to school because even though he knows everything you can’t replace the experience of it all, trying to give him as normal of a childhood as they can muster, being reluctant to send them off to spend the summer in Gravity Falls, ‘Just try to not let Mabel get turned into a mermaid or something!’, (which did happen with an incident at the lake once but they fixed it right up
and what their parents don’t know won’t hurt them)
, they still do eventually move back to Gravity Falls, after the triplets are born Mark and Anna move too, they don’t ever really approve of what Alcor the Dreambender reportedly does to cults, but they’re mostly just glad he has good morals, and will do anything to protect those important to him, Gravity Falls, the Pines, transcendence au, no but seriously Mark and Anna have been breaking my heart i NEED this au. demo-ness

You know, since all those horrible ‘what if’ aus have been popping around lately, now we only need one where Henry dies somehow and Dipper and Mabel have to raise the kids alone. Like, yeah, just fuck me up already why don’t you (for extra angsty points, we can even go down that dark alley and make it a woodsman-like incident, only that much, much earlier than in transcendence au, and that it didn’t end up well. at all.)

Mod S was about to talk about how not okay this was, but then remembered that she helped came up with “Friends With Tax Benefits” so no room to talk there

Idea: An AU where Mabel couldn’t see Dipper.

Oh my god you terrible person –

I’ve actually thought of this before, but it really does have the distinct possibility of forcing Dipper to become more demonic.

Think about the years he spends trying to get Mabel’s attention, perhaps even having her think she’s possessed or haunted by a malevolent spirit. Maybe she even somehow finds out it’s a demon, and she becomes terrified – and things are only made worse when Dipper tries to talk to her through her dreams (that quickly become nightmares). Mabel could think something horrific is tapping into her deepest fears and most profound sadness of losing her brother.

And then after a few years, Dipper has the power to finally slip into the physical realm. While I feel he’d be able to get through to Mabel eventually, she probably wouldn’t believe it’s him at first.

Those years he spent alone did nothing but make him withdraw into himself, and nurse the demon that he is. He’d have a much weaker grasp on his humanity, but it could be healed over time.

It would be sad and potentially very ugly. But it’s not the worst AU-AU that we’ve thought of… keep an eye out soon for something Mod S and Z have been working on together.

What about heartwrenching headcanon? What if Dipper actually died during the Transcendence, but Bill got weakened a lot and was imbued with Dipper’s memories, feelings and will to the point he actually thinks he’s him…until, years later, he finds Dipper’s reincarnation.

This isn’t canon, but Mod A likes the idea, so …

It had taken an unusually long time for Mabel’s soul to reincarnate, Dipper thought to himself. He hadn’t been complaining when her soul had stuck around with him for a few months after her death, but the longer she’d stayed, the harder he knew it was going to be for him to let her go again, to let her reincarnate at all.

Thankfully, she’d finally been pulled into a human body again, and after watching over her new mother for nine months, Dipper was there (albeit invisible to all present and in the Dreamscape) as she was born again.

It was a little bit weird to watch as his twin sister was born, maybe, but nothing about Dipper’s life had been normal for years.

So he watched as the doctor delivered a screaming baby boy with Mabel’s soul and handed it to her mother, then idly noted as the doctor delivered and presented to the mom a smaller baby girl—his sister’s new twin.

A pang of jealousy struck him, as he thought of his sister, his twin, growing up with someone else as their twin, knowing someone else as their sibling, but he pushed it down (that was demon thinking, that was like Bill, just be happy for her, at least she won’t be alone).

Dipper smiled as he watched the new mother coo at her babies, watched as Mabel’s new twin sister’s arm flailed and grabbed at boy-Mabel’s tiny hand. The sheer happiness and warmth from all the auras in the room was blanketing, and Dipper stopped suppressing his ‘aura-vison’ (as Mabel had taken to calling it) and watched the warm oranges and bright greens of love and contentment spread across the room, radiating out from the new family.

He could sense the bright light of Mabel’s soul, pulsing and radiating happiness, and his smile grew to a size impossible for humans. And then he caught sight of her new twin’s soul and did a double-take. He was sure he knew that soul from somewhere, was certain he’d seen it before. But it wasn’t Stan’s (his grunkle had reincarnated years ago, and besides, this soul was different) or Henry’s (which he knew without looking had gone elsewhere, to a young Mexican family on the other side of the country), or even Candy’s or Grenda’s, and no one else whose soul would have seemed so familiar had died yet.

He poked at the soul, cautiously, hoping to discover something about who they’d been, and was flooded with memories of past lives.

A Native American tribe. A band of assassins. A candy shop in a small town. A small but colorful California town. A million past lives that he knew he’d seen before, that felt awfully familiar yet distant.

And then—and then—

He saw a flash of the Shack with the sign intact and slowed down the speed of the past lives flashing before his eyes. He watched a life he knew, a life he’d lived, a life growing up with Mabel, a life where he took a vacation to Gravity Falls when he was twelve and still human. He watched himself finding the Journal, investigating the mysteries of the town, facing Bill in the Transcendence.

And then the memory skipped. Right after the boy—himself—Dipper had been possessed, it skipped again, to a woman growing up during the Transcendence, battling depression, and jumping from the top of an apartment building less than a year before the present.

Dipper—Alcor—stumbled back, reeling. How was that possible? How had his soul been reincarnated if he wasn’t dead?

He found himself opening his mind to the knowledge of the universe, making use of his near-omniscience to a degree that he hadn’t in decades, and had never tried to use intentionally, but in this case, he had to know why his soul had just been reincarnated with Mabel’s when he was still alive, right here, and his soul couldn’t possibly have left.              

He flashed back through knowledge of decades, looking back to the day of the Transcendence with his new omniscience at his disposal. There, Bill trying to carry out his plans, and there, himself enacting the spell that he and his allies had discovered, the one that would end up defeating Bill. He watched as Bill’s energy dissipated in great bursts as the spell hit, and then he paid close attention as he watched what had been the last moments of the soul that was now Mabel’s twin.

Bill Cipher headed straight for Dipper, to possess him. Alcor watched as Bill forced his way into Dipper’s body, taking control of it, watching Dipper and Bill’s souls fight for control.

And then—

Dipper’s soul flickered and wavered and darted from his body. Dipper’s life flashed out like a birthday candle on one of the triplet’s cakes, blown out in an instant. And in its place, he watched as Bill’s soul, Bill’s life and power, were bound to Dipper’s body, pulling it into the Dreamscape. For a moment, he darted into Bill Cipher’s mind, watching as centuries of being a demon were overridden with the color-filled memories, thoughts, and experiences of the human boy whose body and life he’d stolen. Bill’s soul recolored itself to match Dipper’s, but it was only the shell of the soul—the core of it was still entirely Bill’s.

There was no pretending now. At his base, at his center, Alcor was Bill Cipher. Admittedly, he’d been reshaped, remade to believe he was Dipper Pines, but Dipper Pines had died the second Bill Cipher had seized control of his body.

Alcor flew back, flinging himself into the depths of the Dreamscape in his horror, in his attempt to get away from it, but he knew now, he remembered now. As hard as he’d tried to avoid acting like Bill, becoming Bill, he always had been. He’d just never known it.

A frantic, inhuman laugh tore from his throat. The situation was too absurd. Everything he thought he’d lived, everything that he thought defined who he was, was stolen from a boy who’d died decades ago.

He could feel the gold of his irises swelling to envelop his whole eye, his wings flaring bigger to cocoon him in his confusion, could feel the shimmering tears leaking from his eyes.

He was a fraud, a fake. He wasn’t and had never been Dipper Pines.

But hadn’t it been so nice to pretend?

StarTheOdd () submitted:

Wendy is a demon hunter like Constantine (from the show Constantine…), and she condemned herself to eternal damnation with the help of a witch for the power to kill demons. She’s hunting down Alcor, who killed Dipper, or so she thought. She’s dedicated her whole life to this, and finally she tracks down a summoning of Alcor to a certain cult. Enraged, she starts attacking Alcor, causing the cultists to flee. Alcor, or Dipper, is startled and begins fighting back until he realizes who she is. He tries to tell her, but she’ll have none of it and keeps attacking. Dipper has no choice but to attack a few times, mostly dodging, and then she lands a death blow to Dipper with a special dagger. He collapses and automatically reverts to 12-year-old form, trying to protect himself, but he can’t, since Wendy enchanted the dagger with a special light magic. Wendy goes over to him to slice his neck for an instant kill and claim a trophy, but then she stops, suddenly realizing who Alcor truly is and always has been. Horrified, she apologizes and explains everything in a whole angsty-tear-backstory, and Dipper forgives her.

As an act of forgiveness, he uses his dying breaths to override the damnation spell and frees her soul, leaving it free to join the other souls in a cycle of rebirth.

I’m not usually a fan of posting AU-within-an-AU kind of stuff, but oh man this got me thinking of an alternate timeline where everything is the same except Dipper temporarily loses his memories right after he becomes a demon and thus a lot of people don’t know he’s Alcor; and while some people like Mabel might end up learning this at a later point (oh god the amount of angst, thinking he’s been dead for years), perhaps by the time he regains his human memories, he’s already done so many terrible things that he wants to keep his identity a secret from just about everyone else.

The worst part is, he can’t even entirely blame Bill. While some of his quirks were left in Dipper, the way he acted those years after forgetting his human memories were essentially still him. How he would have been had he truly been entirely a demon.