Disclaimer: Before I get into the one shot itself, if anyone is familiar with my work, this is not canon to my GFA series. It's based on what I wrote, however, it's more of an AU if anything.

Also, I never wrote for the other fandom before, so... hope I wrote Alastor well.

I don't own Gravity Falls or Hazbin Hotel.

"Speaking"

Thinking

Bill speaking

The Radio Demon didn't lie. Avoid the entire truth of the matter-oh, yes. He did that quite a lot. Not dive into the finer details of his deals. Yes, that too. So then, he wouldn't lie when he'd say that he didn't get summoned very often.

It was more common for demons of his ranking, and not the lesser ones lurking about the outer circles of Hell. The more powerful one was, the better chance someone on the surface had figured out a way to get into contact with them. Humans wanted everything: money, power, the destruction of somebody who had wronged them. Then there those who didn't think the summoning would work. Those who went into it thinking it was a joke. Those usually happened in cemeteries or basements. And naturally, those always ended on the bloody side. He had to make an example out of them, after all. He didn't like to be treated as a joke. Demons feared him for a reason, after all. Naturally, so should humans.

So it was an annoyance when Alastor was pulled from Charlie's hotel, not having the full chance to explore what his newest project held, and was thrown back into a world of greens and blues. Towering pines surrounded the small clearing, with the occasional birch standing against the darker bark. Red eyes gave a quick glance around his feet, taking note of the summoning circle. The candles were a mix of different colors, and several gave off different floral scents. Still, the amount of care in the lines was clear. It was by no means a rushed job. "Hmm?" He lifted his head, and locked eyes with the mortal across from him. "Satisfied?"

"More or less." She was short, perhaps an inch or so less than Vaggie. Long light brown hair was pulled back into a bun, with the loose strands framing her face. The blue glasses were cracked on one side, and her outfit showed signs of distress. The black trench coat had gouges along the bottom, and several patches sewn along the sleeves. A white tank top was worn underneath the open material, with a red flannel bandanna tied around her neck. The woman hesitated, shifting her weight from one hiking boot to the next, before taking a cautious step forward, her black slacks scarcely passing over the brown material. "It is nice to see I still have some skill in the supernatural."

Skill? Well now, this was going to get interesting. He hadn't had someone with that knowledge in a long time. Keeping his grin in place, back straight, and a summoned microphone cane in hand, he leered down at her. "If your research is any good, then darling, you know all about me."

"Just the basics. Alastor, correct?" She wasn't trembling; that did not mean she wasn't nervous. He could see it, taste it coming off her. "Louisiana serial killer, cannibal... simple stuff."

Addressing that as simple? Why, she was getting more intriguing each second. "You're an acute human, aren't you?" She shrugged, and he waltzed out of the circle towards her, careful not to disrupt her hard work. His height made the human appear small in comparison, and each step was no doubt several of her own, yet she didn't flinch as the fanged smile got closer. "Here you are, knowing about me, yet you refuse to offer a proper introduction."

Her pale face scrunched up, a mental debate going on within her head on whether or not she would answer, until... "Elaine." No last name, no repeating to make sure he heard her right. Just, Elaine.

He laughed, throwing back his head at the action, and Elaine's face remained crumpled at the unnatural bent angle of his neck. "Hahaha! No need to be so informal, my dear. After all, you summoned me. You must have a reason." She wanted something, that was clear. The question that remained, was what. He held out a hand for a shake, grin stretching. Hazel eyes darted from the offered appendage to him, and her look shifted from neutral to wary. Alert. "Hmm." Alastor retracted his arm, and circled around her.

Elaine held her breath, watching him examine her like a piece of meat, before finally speaking again. "... you aren't going to kill me. Despite how... effortlessly that would be." It was out of place, her comment. Alastor stopped beside her, and she watched the ruby red eyes stare at her from the corners, past the monocle, and the smile stretching to a disturbing size.

"Oh? Pray tell, my dear, why do you think that?" It was like a switch was flipped. Gone was the scared look, and suddenly, Elaine was confident in herself. Eyes glinting with something he was unaware of, and her shoulders were raised higher, just like his were.

"I read people. I read demons." There was an edge in her voice at the word, like she had tasted something foul. "It doesn't take a complete face to tell what someone's feeling. All I need to see are the eyes... and your eyes show that you found quite a unique human."

How correct she was. "That would mean I am not the first demon you've laid eyes on." She clutched the book to her chest, the large sleeves shielding the cover from him. Who else had she met...? Perhaps one those pesky imps? They had been caught on camera and had been spotted in person countless of times. Then again, she seemed really focused on the eye part.

"No, you're not. But who he is isn't important." So it's a he then. She slid the book into the inside of her coat. A keen eye spotted the gun hanging on the other side, metal flashing in the sunlight lurking behind the branches overhead. It wasn't a normal weapon in any sense of the word. In fact, it reminded him of that foolish Sir Pentious' weaponry. As the coat closed, though partially masked, he saw the cover of the book. Blue and silver, and angel wings intricately designed on the front. Angel wings... speckled in blood. "I..." Elaine took another breath, a sign of how she was trying to keep herself calm under his steady watch. "I want you to take me to Hell with you."

... what? Alastor's smile slipped a little at the request, and quirked an eyebrow. Take her to Hell? "My dear," he chuckled, "perhaps I didn't hear that right. You said you wanted me to take you to Hell."

"I know what I said." Ah. So he had heard her right. ... hmm? Her cheeks were red, and the faint trails of tears were across them. There, for just a moment, she appeared smaller. Younger, and buried deep into a pit she couldn't get out of. Elaine bit her lip, and closed her eyes for a moment in pain. "I want... I want to go to Hell to rescue a friend."

It was an accident. That was all it was. A horrible, horrible accident.

To think, having spent twelve years within the dimension, Elaine would have learned something. Th-that Gravity Falls was, and forevermore will be, dangerous. Her existence was proof of it. After all, her decision to continue to visit the town, even after the events from those first two summers, she had every right to run for the hills. Go to college far, far away, and never come back.

But... she came back. After graduating with a degree in psychology, a program she eventually settled on, she set herself up in Portland. Maintaining a closeness to the town, while still staying away from it. Her friends had spread themselves out across the states, going to different schools, going on with their lives. Pacifica was the only one in their group who remained in Gravity Falls, and Mabel would go back and forth from visiting her, to the blonde, Dipper, and grunkles in the rural town, to her home in Piedmont.

Dipper. He... he wanted to stay in the town. He loved the mysteries, and after some time, did decide to take Ford up on his apprenticeship offer. Without the danger that constantly lurked over their heads, it all seemed at peace. The monsters that lurked within the town were more comfortable around the humans, and with how little tourists came in, they walked more freely. All in all, the twenty-eight year old saw happiness, and cheer. The disaster that was Weirdmageddon was behind them, once and for all.

B-but then... then it all just... don't you dare cry in front of the murderer, Elaine. Don't give him that. It was two months ago. Dipper was curious, as he always was, and there was stuff from summers ago that he wanted to revisit. One of which... being the shape shifter.

It took three days-three horrible, exhausting days before they found him. It wasn't shocking that the cryogenic chamber had failed again, after so many years. It was after a power outage that rocked the town, and took days to get everyone back on the grid. Before, he was lucky. She had her pocket knife, and Wendy had her ax. Maybe he thought everything would be fine, and that after so long, the monster wouldn't be a threat anymore.

Dipper was wrong.

He was so... so wrong.

Vicious claw marks covered his body, tearing deep into his skin and muscles. With how the cavern looked when Ford and her found, it was clear there was a struggle. Blood, red and green, was sprayed across the rocks and glass. His clothes were torn, and his face still had a wide-eyed look to it, his mouth partially open in a silent scream. Th-the smell, she... she could still hear her own screams, wracking through her body as Ford held her back from rushing over to the younger twin's side.

Mabel was a shell of herself, refusing to visit the town despite Stan and Ford still staying there; in a new house, built alongside the Mystery Shack. Stan was trying his best, he really was, to try and console his brother. Ford's behavior reminded the both of them of when he first arrived back in their dimension. Absorbed into his work, isolating himself throughout the days except for meals, which even then was rare. Though their parents remained unaware of Ford's existence, and while they wanted her to try and patch things up with her uncle(s), they supported her avoidance of the town. It was the nail in the coffin, since they knew that way back when, the trio weren't the same after that first summer. Gravity Falls wasn't... normal, or safe.

Her whole world had collapsed. Just. Like. That... and she had to fix it. She had to. Sh-Elaine promised that the three they would always be together. She kept that up for years, and for it to end like this, she just... I have to find him. Sh-she had to.

When she had done some digging, and heard about the random murders that happened across the country, Elaine got curious. She heard about what each one had in common, and thanks to the wonders of the Internet, and how easy it was to find the materials to summon a demon from the depths of Hell... there she was. Standing in the clearing where one of her squad members discussed his deal with a certain triangular dream demon all of those years ago, and facing down a deceased serial killer from New Orleans.

"I want to get to Hell... to find Dipper Pines. I need to get him back." Alastor hummed, tapping the mic part of his cane against his hand. The brunette noticed his appearance was akin to a deer. From the antlers atop his fluffy red hair that once stretched outwards in sharpened points only to shrink back into his skull, to the unique clawed hands clutching his cane, to the prints on the bottoms of his shoes. She had to admit, he was horrifying, but the man had style. Just like him. Elaine blinked back the thought, and narrowed her eyes. "He's down there, I know it."

"Really now?" He stopped in front of her, an arm held behind his back, and other at his side.

"The Pines family is known for dealing with monsters. Especially demons. While I don't know for certain his rules are the same as yours, I don't doubt it for a second that's where he ended up." Bill possessed Dipper's body. He made a deal with a demon. If that didn't land you down there, what else would? Even though Bill became a demon over time... what choice do I have? She had no way to reach Heaven. Contacting an angel was far more difficult than contacting a demon. This was her only chance. "Take me with you, help me find him. That's what I want."

Alastor still stared down at her, but she knew she had his attention now. She had a strange request, and showed little fear in front of him. I've seen Bill's true form and gotten chased throughout the Fearamid by nightmare fuel. The man before her couldn't possibly do or be any worse than Cipher. "Tell me, darling, if I were to do this... what's in it for me?"

"Well..." she had thought that part through, and she... hated what she arrived to. "As long as I'm in search for him, until we find Dipper, I'll help you with... whatever you need." Oh, there goes my pride. She had to suck up to him. Backing out now would mean a bloody corpse within the forest. She'd be another victim to his ever-growing body count. "Think of it as... gaining an assistant."

She saw his eyes sparkle in interest at the offer, and he straightened up. "Sweetheart, you do know what you're requesting of me, don't you?"

"Oh, I know. But I've already been through hell on the surface. Why not go through the place itself?" Elaine was bitter, and she was tired. Her self-preservation wasn't already the highest, after that summer back in 2012. She didn't care though. I just want Dippin' Dots back. She just wanted... Mason back. She wanted her family back. Elaine's face fell, the first true frown she had displayed in front of Alastor, and she sighed. "Take it or leave it. At this point, I don't really care."

"Now now, my dear." His hand stretched out, and she took note of how it was going to rest upon her head. "You mustn't think so low of-" there it was. A smirk washed over her face, watching the clawed hand smack into a purple barrier, decorated in symbols. His smile faltered in surprise, and for once, she knew she had gained the upper hand. Thank you, Ronnie. The succubus was right. The same trick for the house worked in bracelet form. Elaine glanced quickly at her wrist, where the purple and blue threads peeked out from behind her coat's long sleeves. Works for all demons. The trick, however, was you had to make the first move. He couldn't lay a finger on her otherwise. "... hehehe." He chuckled, bringing his hand back to examine his nails. "Why, aren't you full of surprises?"

"My soul to keep. Afraid a few of my friends wouldn't be too happy if I lost that." If he heard that she... she'd prefer to spare Alastor, not have him dismembered. "Besides, I'm certain such a loss wouldn't damage a deal like this too much, right?"

He lowered his hand, and she again shifted slightly at the change in his eyes. "You have dealt with deals before, haven't you?" Elaine nodded. Several, all to the same person. She couldn't be fooled so easily anymore. She wasn't the same scared teen that first awoke in the Shack's living room. She had worked with monsters before. Not the gnomes, or the fairies-no, no. True monsters. She knew how they operated, and while she tried to show no weakness, she was able to counter it with her words and preparations. Though she would admit, Elaine wasn't proud of how vague she made his side sound. What else could she do? If she made it sound simple, he wouldn't bite. "... hehehe."

Alastor chuckled, and for the first time since his arrival, Elaine took note of the shadows. The eyes in the birch trees watched, as they always did, but there was something else there. Moving, slowly enclosing them. The sunlight was gone, behind one of the clouds, and the world felt... close. Suffocating. Static. I hear static. A constant buzz in the back of her mind, filling her ears. It wasn't like Bill, whenever he invaded her mind. This was uncomfortable, foreign. "My friend's safe return...?"

"My dear, it will be like he never left." That's sugarcoating it. "So it's a deal, then?" The cane vanished as he twirled it behind him, and Elaine felt the wind pick up around them, blowing their coats around as leaves danced in the air. A green glow circled around his hand, and Elaine glanced from it to his face. His mouth remained unmoving, and the static had increased in her ears to an almost deafening volume.

... Angel, do you really think this is the best thing to do...? Heh. She was wondering when he'd speak up. Of course he was watching the show from the Nightmare Realm. Faint, was his voice, however. She could barely hear it over the present demon.

What other choice do I have, Bill? She responded back, masking any visible sign that someone else had entered the conversation. Just... tell Ford I'm sorry, okay?

Ang-she cut him off, slamming the connection from the Mindscape to reality shut, and stood tall. "It's a deal." She reached forward, throwing the remaining caution to the whirlwind around her, and gripped the offered hand. It engulfed her own, wrapping easily around her wrist, and the claws dug into her skin painfully.

It was exactly like Cipher, and she quickly had to hold back a shriek at the burning feeling that rushed up her arm towards her chest. Whether or not he could take her soul, it didn't matter. The mark would still be there, staining her soul, showing just who she belonged to. A mark on a soul, rather than the burn that the dream demon gifted her with. Before Elaine fully blacked out, before the shadows that danced around them swallowed her up, she caught one last glimpse of Alastor's face. The dark red of his eyes had morphed into radio dials, locked onto a single station, and his smile. A smile that, on any living person, would shatter bones. A smile that, without a shred of doubt, would be the death of her. "Heheh... excellent."

And it's done. I wanted to write something for the Hazbin fandom for a while, and didn't know where to start. Wrote this all in one go, and I'm happy with how it turned out.

Until next time!

Angel