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luxaofhesperides · 2 months

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Post-Apocalypse + Soulmate AU ; requested by @burr-burr!

When Danny was a kid, he used to imagine how the world would end. It was never a zombie apocalypse or the fallout of a nuclear war, but the death of the sun, the expansion of their star in death that would swallow their planet whole, leaving no survivors.

It would have been nicer than the post-apocalyptic world he stands in now, knowing that it’s his fault the world has ended.

He’s still struggling to wrap his head around it. To understand that all of this is his fault because he cheated on one test, desperate to pass after being unable to study for it with how exhausting and time consuming fighting ghosts is. Everywhere he looks, there’s more destruction. His own home is rubble, with only the partially untouched Ops Center remaining to let him know that this is where he once lived.

The rest of Amity Park is in worse shape. Buildings are hollowed out, the skeletons of their foundations visible, if they still remain standing. Most homes have been burned to the ground, leaving blackened corners of walls and nothing else. The roads are cracked and difficult to walk through, as if an earthquake tore through the city. Cars are scattered along the road, overturned or left abandoned, doors still open.

Danny has yet to find any bodies. He doesn’t know if that’s a good sign or not.

He’s only caught a few glimpses of his future self, the cause of all this, and can’t bring himself to chase after that monster. He feels sick to his stomach knowing what he’ll become.

That monster has to be stopped. The world has already ended, but that doesn’t mean his future self can be allowed to go on like this. If there are any survivors, they need protection. They need to know they’ll be safe to try to start rebuilding, and that can only happen if his future self is dead.

Danny knows what he has to do; he has a responsibility to protect what little remains of Amity Park, and to do that, he needs to kill himself.

But his head it spinning from the horror of the situation and his throat is tightening up the way it only does when he’s about to have a panic attack.

He needs to stop his future self, but he also can’t stay another second in the ruins of Amity Park without destroying himself.

The guilt sits heavy in his chest as he goes ghost and takes to the sky, flying blindly towards the setting sun. Danny doesn’t know where he’s going, and he doesn’t really care. He just needs to get away for a bit, until he can calm down and put together a plan of attack so he can take out his future self in one go.

He just…

He never thought he’d be a monster. But here they are.

Flying away from Amity Park reveals the truly harrowing extent to which this world has suffered under his future self’s hands. There are no intact cities or towns. Roads are broken beyond repair, highways littered with empty cars, most bridges crumbling into the rivers below them, and everything is covered in overgrowth. All signs of humanity’s careful cultivation of the world has been erased. The earth takes back what humans took from it, covering everything in green.

There is no movement. No people. Barely any birds flying beneath him.

What remains of the world is silence.

Danny is terrified that there’s no one left. That his future self has so thoroughly destroyed the earth that no human survivors remain.

That gives his guidance, some idea of where to go: a big city. Any big city, really.

He flies lower, searching for some sort of landmark, or a sign that will tell him where he’s going. A rusted over green sign farther down the road tells him that he’s 50 miles from Gotham.

Oh, Danny thinks, Maybe Batman can help me.

If anyone could survive the end of the world, it would be the superheroes, right? If anyone stands a chance at defeating his future self, it would be a superhero. Superman might have been a better choice, but Metropolis is the opposite direction and multiple states away; Danny’s not sure he can make it before his future self catches wind of him and hunts him down.

Danny has no doubt about what would happen to him if he’s caught; there’s a reason he hasn’t seen any ghosts around, after all.

Gotham is a city of secrets and rumors. What little he’s heard of it is baffling and, frankly, insane. There’s no city in the country like it and Gothamites prefer it that way, stubbornly loving the home that will kill them. For all the manmade horrors they survive on the daily, they would be more prepared for the end of the world than anyone else.

Gotham may be another casualty of his future self’s destruction, but it also offers him hope.

Danny follows the broken road towards Gotham, pushing himself to fly faster than he ever has before. What should have been a half hour flight is completed in fifteen minutes.

As soon as the towering buildings of Gotham, dark and semi destroyed, come into view, Danny drops from the sky and returns to human form. The strain from pushing himself has exhausted him and he feels it like an ache in his chest, his heart twisting and trying to burst from how hard it’s beating.

He collapses to his hands and knees and gasps for breath on the outskirts of Gotham.

It takes a good few minutes to calm down and breathe normally, then another to gather his strength to stand up and begin walking.

The world is eerily quiet as he enters the city, feeling the chill fall upon him as he is consumed by the shadows of tall buildings. It’s much more intact that Amity Park, but there’s no denying the destruction that still surrounds him. Buildings are empty and worn down, decaying and slowly being consumed by new growth. Burnt out husks of overturned cars fill the street, leaving Danny to carefully pick his way around them, unable to walk in a straight line.

He feels like the only person in the world. He feels like he’s being watched by a hungry eyes.

Danny shivers and walks faster.

The deeper he goes into the city, the more he starts to hope that he’s not alone in this world. There’s small signs of life: the smell of smoke, recently burned, certain streets cleaned up, makeshift walls constructed from rubble to block access to certain areas of each block.

He swears he can see people move above his head, but anytime he looks up, the windows of every building are empty.

“Batman,” he whispers to himself, “I just need to find Batman.”

He turns a corner and continues walking. Apartment buildings give way to stores and businesses, all with their windows broken and nothing on the shelves. Then the buildings end abruptly and he’s left staring at an overgrown park that resembles a jungle more than it does a part of the city.

The scent of something sweet lingers in the air. Fruit, perhaps, or flowers.

If he was left in the aftermath of an apocalypse, he would go to where he could find growing food. If there’s anyone left in Gotham, he’s willing to bet they’re in here, surviving off of what food can be grown in the confines of the park.

Danny crosses the road and takes three steps onto the grass before someone appears beside him and points an electrified baton at him.

“Who are you?” they demand, eyes hidden behind a cracked helmet, but the bottom half of their face is visible, revealing scars crossing on dark skin.

Danny takes a step back, eyeing the electric baton warily, and lifts his hands to show he means no harm. “Danny. I came from out of town. I was hoping to find people here.”

“You don’t look like you’ve been traveling.”

His clothes are clean and intact and he has none of the world-weariness that weighs down this Gothamite. Danny winces, and says, “My situation is kinda complicated. But I did just get here. I’m looking for help, actually. Do you know where I could find Batman?”

There’s a long moment of tense silence, then he hears a quiet sigh and the helmet comes off. An exhausted looking man looks at him with one blind eye, turned a milky white, and his voice is low and stricken as he says, “Batman’s dead. But maybe I can help you.”

“Batman’s dead?!” Danny repeats, shocked.

“Yeah. Sacrificed himself in one of the last times Phantom attacked Gotham. Got me and Nightwing out of that encounter alive. We’re really the only heroes left in Gotham, not that there’s much need anymore with everyone trying to survive.”

Phantom killed Batman. His future self killed Batman.

Danny feels sick to his stomach.

“Oh,” he manages to say.

The man’s expression softens. “Don’t worry, we’ll help you as much as we can. Why don’t you come on in? Ivy can get you some food if you’re hungry.”

Danny nods numbly as he follows the man deeper into the park. He walks with ease, taking paths that only become visible when he walks them, leaving Danny to follow close behind. It takes some time before he realizes that the plants are moving out of their way just enough that they don’t trip, and when he looks back, the path is covered again, hidden from sight.

He’s taken to the heart of the forest, where the trees shift to the side to reveal a large encampment of survivors all living together. Beds are strung up as hammocks between trees and rope ladders dangle from branches to help people move up and down. The ground is full of small fire pits, a few in use to make make food, and sections in the back full of vegetable and herb patches, separated by berry bushes.

The people here all look tired and worn down, but they still smile and speak in light voices, adjusted to a new life after surviving so much horror and destruction. He even spots a few people using powers, or just looking different, including one large man who looks like a crocodile.

“Pick up another stray?” a raspy voice asks, humor lighting the tone. They both turn to see a woman with long red hair and a green tint to her skin be lowered to the ground by a vine. She’s also heavily scarred and her right arm is completely gone, replaced by a wooden limb covered in moss that moves as if it’s always been a part of her body.

“Hey Ivy,” the man greets, “I don’t think this one is staying. He came to Gotham looking for Batman.”

The words make Ivy’s gaze sharpen, and Danny feels a trickle of dread go down his spine. She’s dangerous and standing before her feels as if he’s in the mouth of a hungry beast.

“Is that so,” she says, voice flat. “How interesting. I’ll let you two talk somewhere more private.” Her gaze flicks to the side, and when Danny turns to look, he can see some of the people in the encampment observing them warily, bodies tense and poised to either flee or attack.

Ivy turns and the plants part for her. Danny waits for the man to begin walking before he follows, trying not to feel trapped as the plants close the path behind him. She takes them to a small pond full of water lilies, gives the man a careful look, then leaves, swallowed up by the plants.

“Is everything okay?” Danny asks hesitantly. “I didn’t mean to cause any trouble.”

“Nah, you’re good,” the man replies, “It’s just that people don’t trust me much.”

“Why? You’ve been really nice.”

The man shrugs. “My soulmate is Phantom. He’s the one responsible for doing all this and killing almost everyone we love. I didn’t know until the first time I fought him, but they hate anything to do with Phantom, including me.”

Danny’s heart stutters in his chest. This is his soulmate.

Most people don’t subscribe to the belief that they’re meant to be with their soulmate. Meeting your soulmate is rare enough that most people don’t try, and plenty of people have spoken of how important it is to have a variety of relationships, to not close yourself off for the slightest chance of meeting your soulmate.

Danny never looked for his; he didn’t want to subject them to his parents, and then he became a halfa and gave up on all dreams of having a normal life or any relationship with someone who didn’t know he was Phantom.

And now he’s here, in a ruined future, standing before his soulmate who understandably hates him for destroying the world.

“You’re Phantom’s soulmate,” Danny breathes. His hands are shaking. He wants to cry.

The man sighs. “Yeah. I am. Not that it’s stopped him from trying to kill me. Don’t worry, kid, I’m not working with him. I swear.”

“He’s your soulmate and he hurt you.”

“He hurt everyone,” he says, then gestures at his blind eye. “This is barely a thing compared to what he did to other heroes.”

Danny can’t find the words to expression his horror at seeing the damage he did to his own soulmate. His future self is heartless and cruel and bloodthirsty. He has to be stopped.

He doesn’t want to kill his soulmate.

“I came here for Batman,” Danny says, “Because I thought he could help me stop Phantom.”

“That’s rough, kid. Batman couldn’t beat Phantom. I don’t think anyone can. We’ve tried, but most heroes are dead and we can’t just go out there and risk the lives of everyone here. We gotta focus on survival, not revenge.”

“I have to stop Phantom.”

“Sorry kid, but that’s a terrible idea. Don’t go out there trying to be a hero. You can stay here, alright? Ivy will get you set up and the others will help you settle in.”

Danny takes a step back and shakes his head. “No. I have to stop him. It has to be me.”

“And why is that?”

“Because I’m Phantom,” Danny whispers.

The man immediately reaches for his electric batons again, taking a step back. “Not funny, kid,” he says with a tense voice.

“I’m not joking. I am Phantom, just from the past. I’m not supposed to be here.”

“You’re Phantom?” the man repeats. “You. You’re just a kid, and you’re going to destroy the world one day?”

“I don’t want this to happen! That’s why I need to go back, so I can stop the event that will set me down this path. And to go back, I need to defeat the Phantom that exists here.”

“He’ll kill you, kid.”

“That still solves the problem, doesn’t it? If I die here, then he’ll never live long enough to destroy the world. He’ll die too.”

The man stares at him with cold eyes, then turns away, dropping his hands away from the batons. “Don’t turn this into a suicide mission, kid,” he says. “The Phantom who’s here isn’t you. You don’t have to pay for his crimes. Just… stay here and I’ll go fight Phantom.”

“He already hurt you,” Danny says.

“What’s a little more hurt? I can handle it.”

“No,” Danny says firmly. He shoves away the fear and hurt in his heart and finds his strength in determination. No more running away. No more hiding.

The timeline should not exist. He can’t hesitate at the thought of erasing this version of his soulmate from existence; he’s tired and injured and an outcast in the only community that still exists in Gotham. He deserves better. Everyone here does.

And to give them a better life, Danny needs to stop this one from ever happening.

“This is my future. It’s my responsibility. I’ll stop it and make sure this never happens. And… I’m sorry for everything I did.”

“It’s not your fault, Danny. You’re not this version of Phantom.”

That’s not at all true, since Danny’s actions lead to the end of the world, but he’s not going to argue when he’s preparing to fight a stronger, more ruthless version of himself. He takes a deep breath, then goes ghost and floats into the air.

“Before I go,” he begins, hesitantly, “What’s your name? Since you’re apparently my soulmate.”

The man smiles sadly and answers, “Duke. If we ever meet in your time, tell that version of me to look for my mom’s favorite book.”

It’s an odd request, but if it’s important enough to be asked for, then Danny will do it. “Your mom’s favorite book,” he repeats, “Got it.”

“Take care, Danny. Good luck out there.”

Danny nods and takes one last look at his soulmate, older and worn down, stubbornly getting through each long day, and swears to make things better.

Then he flies off, ready to fight his future self and make things right again.

. . .

He thinks of his soulmate for years after he’s back in the present. The timeline where his future self exists is gone and the world is safe, but he still remembers the pain he caused Duke.

When the time comes to apply to universities, Danny sets his sights on Gotham. His parents take him on a trip during spring break to tour the campus, and it’s after the tour, as he wanders around on his own, that he bumps into a student walking out of a building.

“Sorry,” they both say at the same time, reaching for each other to help each other keep their balance.

As soon as their hands meet, it’s as if lightning runs through him. From the look on the other guy’s face, he felt it to.

This is his soulmate.

“Duke,” Danny says, amazed and disbelieving all at once. And the request crosses his mind, something he wondered about almost every night since he returned to his time. “Look for your mom’s favorite book.”

“How—?”

“I met you in the future. You asked me to take back a message for the you that’s here. So: look for your mom’s favorite book. What does that mean, by the way? I never asked.”

Duke blinks, then slowly retracts his hands from Danny’s. “My mom’s favorite book was a hand bound journal from my dad. They were soulmates and he wrote about their first year in a relationship together. It’s full of pictures, and she loved it more than anything. That message is to remind me to have faith in soulmates, to believe that something good can happen to me.”

“Oh! That’s… wow, sorry, I didn’t mean to pry into something so personal.”

Duke shrugs. “It’s fine. I needed the reminder. I would have already run away by now if you didn’t say that. You already know my name, but I think now’s a good time to introduce ourselves.”

“Right!” Danny says, flustered. He sticks his hand out, which Duke shakes with an amused smile. “I’m Danny. Fenton. I’m coming here next semester.”

“Duke Thomas. I’m a freshman here and I’d really love to get your number.”

He’s not hitting on Danny, not really, but it still makes him blush. The way Duke looks at him is full of light and laughter, so different from the exhausted and wary way he looked in the future now rewritten.

This is what the future version of himself tried to kill. He doesn’t understand how anyone could ever hurt Duke when he’s so full of life.

But he’s safe now. Everyone is; Danny changed the future and what lies ahead is wholly unknown to him.

The world is safe and full of promise.

No matter what comes, Danny is sure he and Duke are going to be just fine.

#ghostlights #dc x dp #dp x dc #dcxdp #dpxdc #prompt fill #my writing #the horror of knowing what kind of monster you are capable of becoming paired with the knowledge that your soulmate has suffered bc of you #and reasonably wants you dead/taken out of the picture not just for revenge but for the sake of everyone's safety #but also from duke's pov he's found a teenager wandering into gotham's last refuge. he looks strangely untouched by the end of the world.#hes looking for batman who duke watched die. and then it turns out that hes a younger version of the monster that ruined your life #(and everyone elses life) and realizes that this is who his soulmate once was #and then knowing that he either has to kill this innocent version of his soulmate or let his existence be unwritten #there is no happy ending for post-apoc duke's story #but he and danny get a second chance in a new timeline where things are better #doesnt mean the nightmares ever leave danny lol #thanks for the prompt!!

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