Okay, so I had this idea in mind a while ago, but then when season 6 came out, ''Darkest Night'' worked perfectly to write this. Just as a warning, this story is highly based off from Trollhunters, ''Unbecoming''. I guess that's all... man, I really have no notes.

So I guess enjoy and don't hate me.

''ENOUGH!'' bellowed Hiccup, silencing the whole room. He'd had just about enough of hearing his team arguing over things that would lead to nowhere at all. There were way more pressing concerns, and guessing over how life on Berk would've been if they'd never left for Dragon's Edge wasn't one of them. ''All of you, enough!''

His friends' eyes all turned on him the moment he opened his mouth, and the bewildered stares were relatively satisfying. Even the twins had shrunk away at his shout with no additional comment. But Hiccup already felt too guilty about his father's state to care right now.

''This is all pointless.'' he continued, walking towards the group. He noticed their concerned expressions, Astrid's most of all. But he had something to say and he wanted to get it inside their heads. ''It doesn't matter if we stayed or left.''

Tuffnut cocked an eyebrow, exchanging gaze with his sister. ''Thought that was the game we were playing.'' he said, gesturing with his hands. ''You know? 'What would've happened if we had never left.'''

Hiccup couldn't believe his ears and decided to make himself clear, once and for all. He looked straight into the male twin's eyes, the feels catching up to him. ''It's not a game, Tuffnut!'' he said, his gaze trailing on to the other riders, making sure they understood this was a message for all of them. ''It's not a dream. It's not a way of life. It's reality. It actually happened.

We trained the dragons, we left Berk, and my father is on his deathbed because of it...'' His voice chocked at the last part. ''because of me.''

Astrid attempted to make a move to have him stop blaming it all on himself, but Hiccup refused to hear it.

''None of this would've happened—and I mean none of it—if I had never shot down Toothless in the first place.'' he declared, turning around to face his dragon who growled softly back at him in protest.

An uneasy silence filled the Great Hall where the riders exchanged preoccupied thoughts on their leader's quiet wish.

''You know it. I know it. Berk knows it. Everyone knows it!'' said Hiccup, looking over each member of his team individually without regard of how they felt about this. He shifted his eyes on Toothless who angled his head, burbling softly to his rider. ''Even knows it.''

Without expecting any sort of confrontation from them, Hiccup stormed out of the Great Hall. He was aware that Astrid had made a move to follow him but quickly stopped herself, which he was grateful for. He didn't feel like talking to anyone right now. He wanted to be left alone.

Thinking about his sick father as he crossed the massive doors, Hiccup suddenly sensed pain building up inside like raging fire and a scent of smoke filled his nostrils. It all happened too quickly for his mind to register every detail, but he did feel the unpleasant sensation tear at his chest, and a blinding light as suddenly all he saw. He wanted to scream at the top of his lungs, but before he ever could, a blanket of blackness enveloped him.

…

Smoke.

Hiccup woke up in his bed, startled by what had just happened. He sat up straight, gasping for breath and felt in middle with both hands where the pain had built up most. When he realized he had no injuries, he signed in relief. Yet, something felt strange…

Backing up a few steps, he lowered his gaze down at his tunic.

Weird, he thought. He saw no reason why Gothi decided to change his clothe. He couldn't remember how long he'd been out, but he surely knew he wasn't sick and therefore there was no need to switch his red tunic to his old green one he'd worn for years.

A choking smell reminded him how he'd waken up so early. He saw to dawn light coming from the cracks in the roof, suggesting it was still night. If there was a fire, he had to stop it.

''Toothless.'' he called to his bud, but as his eyes reached the corner of his loft, the spot was empty. Even his dragon's stone bed wasn't at its place.

Hiccup frowned and got up. That's when the realization of something awfully wrong hit him. He could feel his left foot. He'd spent so much time with Gobber practicing to balance his weight on his prosthetic. How was that even possible?

His heart skipped a beat as his eyes reached his foot, his breathing quickening uncontrolably. He backed up, bumping into the side of his bed where he lost balance and half fell half sat.

''This cannot be happening..!'' he said to himself, placing his hand on his forehead while lifting his foot to be sure he wasn't dreaming. But he could sense every toe, suggesting this was all very real. ''I should be missing a leg!''

Freaking out, Hiccup sped downstairs.

''Dad!'' he called to his father, expecting him to be lying in his bed next to the fire pit where he'd seen him last. But there was no bed and certainly no Stoick.

''What is going on right now?'' he asked to no one in particular, given the house was completely empty. He ran both hands through his hair, disturbed by everything happening around here. ''My dad is sick! And I should only have one leg!''

A sudden roar he recognized belonging to a Monstrous Nightmare followed by a man's cry brought his attention to the door. Concerned, Hiccup approached the entrance and threw the door wide open, only to be given the sight of an angry Nightmare passing by, lighting everything in its path on fire, including the Viking it was chasing before it noticed Hiccup. It twisted its head around, and with no hesitation, fired in his direction, forcing the heir to shut the door before he was roasted alive.

Hiccup pressed his back against the door as it suffered the wrath of the dragon's fire. He recalled four years ago facing the exact same scene, only he never knew about the future. At that moment, he understood what was going on. He'd lived everything up to the day he wondered if things would've been better if he'd never taken that shot on Toothless, only in his 15 year-old self before he ever did.

Hiccup shook his head and swung the door wide to avoid grazing the embers on the front of the door. He made a run for the forge, almost running into several Vikings on his way. Gobber had been the first to come to mind, and he had to reach him right now. He just hoped he wasn't the only one living this.

He had no time to admire the flying creatures descending from the darkness above to set aflame the village like he had last time, saving him much time. He crossed warriors heading into battle, and when they saw him, all he could hear were:

''What are you doing here?!''

''Get inside!''

''What are you doing out?!''

''Get back inside!''

He received many complaints as he sped through this red hell. He wasn't used to be bossed around anymore. He was leader of the Dragon Riders, and would probably soon be acting Chief given his father's state. He thought for a second how far he'd come from this day to the one he'd just arrived from before waking up here.

But those thoughts were soon drowned when he felt someone grab the back of his fur vest and lift him off the ground, pulling him out of the way of a Deadly Nadder's blast just in time.

''Hiccup!'' roared Stoick the Vast, holding him up. '' What are you doing out? Get inside!''

Hiccup barely recognized his father, slightly younger and not sick. He was glad to see him on his feet and fighting once again. Emotions decided to surface at that moment, and Hiccup stared back at Stoick as he shoved him out of danger. But the feeling wasn't mutual as he ordered him away.

Just like all those years ago, Hiccup defined that direct command and ran for the forge where Gobber was hammering the same old sword. So Stoick did not seem to have lived everything after the war. He prayed to the Gods he's get his ex-mentor by his side.

Hiccup crashed into the workshop at full speed, his leg as healthy as it had been before the Red Death, giving him no trouble.

''Oh!'' said Gobber as his apprentice passed by. ''Nice of you to join the party! I thought you'd been carried off!''

Same old Gobber, thought Hiccup, leaning on his knees for breath. He remembered he'd answered something that'd made you have pity on him, but he said nothing this time. His attention trailed outside at the raging battle. They were still at war with the dragons… and Gobber was still making weapons, not fixing dragon teeth.

''Come on! These weapons aren't gonna sharpen themselves, you know.'' called Gobber from his station, shoving him a dull sword, bringing him out of his thoughts.

Hiccup gasped, the blade locked between both his arms and chest. He didn't remember swords being this heavy.

Alright, so clealry, Gobber wasn't experiencing what he was. So that left the gang to try next. Wasting no time, Hiccup dropped the weapon on the ground, his determined eyes locked outside as he searched for any of his friends. But he was lifted off the ground once again before he ever reached the exit.

''Oh, come on...'' he mumbled under his breath. Gobber's hook held him up from his vest just like Stoick had, and Hiccup had about enough of being treated like this. He didn't need to relive all of the shame.

''Where do you think you're going?'' demanded Gobber, putting him back down away from the entrance. They didn't need another disaster. ''Warriors need their axes and swords sharpened. Now! I know how much you want to go out there and make your mark. And you'll get your chance, eventually. But to do that, you need to stop all... this.''

Hiccup looked at himself and back at the blacksmith in disbelief. ''But you just gestured to...'' he began, trailing off as he realized he was speaking his exact same words. ''all of me.''

''That's it!'' continued Gobber, all too cheerful that he'd gotten it. Hiccup's thoughts ran like the wind and he reached a fist to his chin. He knew what the man was going to say next and mutely spoke the words at the same time as his ex-mentor. ''Stop being all of you.''

Hiccup inhaled slowly. ''So you have no idea that I'm a Dragon Rider?'' he asked the blacksmith, placing both hands on his chest while looking at the man straight in the eyes.

Gobber only stared at the boy.

And now he must think I've gone mad... he thought.

''Yah must've received a mace to the head on your way here, Hiccup.'' commented Gobber, carrying on with his duties. He picked off where he'd left before he'd gone chasing after Hiccup and hammered the sword's red-hot blade. ''Who would even manage to ride a dragon?''

''Well,'' mumbled Hiccup, loud enough for himself only. ''You'd be surprised.''

A blast of light drew his attention to the plaza before them and saw Astrid and the gang putting out the fires with water buckets. It was strange to see them all so young, and he couldn't help but think they were all like Gustav from his other life at the same age—inexperienced and reckless.

Suddenly, an all too familiar whistling noise drew his attention to the ink-black sky, dotted of many stars.

''Night Fury! Get down!'' yelled a man out there and everybody did is suggested, placing their shields over their heads. A purple plasma blast hit the catapult ahead, turning it into an crumbling pile of boulders.

Hiccup noticed his father had been up there, and he couldn't help but worry if he'd been injured. ''Dad!'' he called, stumbling to the window of the forge. Now he couldn't see him anywhere through the smoke surrounded by flames eating at the dry grass, giving the thick clouds here and there a warm orange color.

''Man the fort, Hiccup.'' ordered Gobber, clicking a weapon to his missing arm. ''They need me out there.''

Hiccup followed him till he was out and waited on the edge to cross outside while his ex-mentor struggled to advance. Then Gobber turned around, pointed to the heir and said, ''Stay. Put. There.''

Hiccup stood in the middle of the armory, his fur vest unchanged for his leather apron like it should've been. His gaze passed the blacksmith to see his father had reappeared and was giving orders to his men. He let out a quick sigh of relief and returned to Gobber.

''You know what I mean.'' said Gobber before shouting a war cry and launching himself into battle.

The difference between now and then was that Hiccup needn't to prove himself by shooting down a dragon. He looked outside and saw his father, and turned around to look at his project that'd be used to shoot down Toothless. He returned his eyes on the chief, fighting to protect his tribe like he'd always known him for, not a sick father on his deathbed because of his son. That was enough for Hiccup to change history's course.

He took one step back.