Aiden pulled himself out of the sewer with ease, not even bothering to help the others out. Aiden saw all of the troops and Shining Armour standing, staring out at the city, more than likely still processing the tall building that collapsed. Aiden grabbed their attention by speaking with a voice that had fear and anger in it "Where is he?" He said loud enough for everypony to hear.

Everypony stared at Aiden with confusion. Shining Armour eventually spoke "Where's who?" He asked, confused like everypony else.

Aiden pulled out his pistol that he carried for an emergency "John, the fucking human that's a lie to all of us, the human that isn't really a human, he's just a fucking illusion of my dead best fucking friend! The guy that thing made me forget about by using chaos! The friend I held in my arms as he died on the field in Iran, the only one that I know for a fact that would take a bullet for me...." He finished with a depressed tone.

Twilight stared at Aiden, still slightly scared of him from before "John's dead?" She asked with a confused expression.

Aiden looked at her "He died. He was never here, he was a illusion, so was that red thing. We were all tricked, we had some form of spell casted on us to make our eyes see things that weren't real, simply just a figment of your imagination. I know who it is, it's that fucker that escaped the stone, the thing you call Discord. I'm gonna kill him, he used me, he used my worst memories to fuck with all of us." He said with anger slowly making its way back to the surface.

Just as he was finishing, John appeared from behind the crowd of soldiers "What'd I miss?" He asked with curiosity.

Aiden's instantly locked his eyes onto him "You. You piece of shit." He said, his voice filled with rage.

John blinked a few times "Oh boy, did you figure it out that quickly?" He asked, already knowing the situation.

Aiden pulled out his gun before quickly shooting the fake human in the head "You... Fucking asshole!" He shouted angrily at the fake corpse of his friend "You piece of shit!" He quickly turned to Twilight "Where the fuck is that piece of shit Discord." He said in a tone that made nopony want to mess with him.

Twilight was taken aback by his attitude "U-umm, a-at the gardens? I think he's still stone...." She said, worried by what he'll do next.

Aiden took one last glance at the crowd "Y'all go the fuck home, I'm on my own now, this shit got personal." He said before walking off back towards Canterlot.

Everypony was shocked by what he said. Shining Armour broke the silence "He's a psycho, h-he just killed him with no regrets, whether or not John was fake but he was a replica of his friend, he still just... killed him. I thought he was a calm and cool guy, I guess I was wrong." He said before sitting down to gather his thoughts.

Twilight stared at the human that was now in the distance "I thought he was too." She said before watching him again.

Applejack walked up to Twilight "A-are you okay? You seem more stressed than everypony else." She asked in her usual country accent.

Twilight blinked away a few tears "I-I thought I knew him, he acted so well, he was so kind before, but now that something got to his feelings he's off the wall. I should've listened to him, he told me this is the life he lives in." She told her friend.

Applejack looked at her with curiosity "You're talkin' like ya loved him." She said with confusion.

Twilight sniffled "I did, now I'm not so sure." She admitted.

Applejack was surprised "I didn't expect him to be your type. Well, I think you should reconsider your options, he's a soldier after all. You should probably let him love somepony that lives a crazy life like his." She gave her some advice.

Twilight sighed "Perhaps so." She said before looking back in the distance, seeing the speck that was Aiden

Aiden walked through castle with a atmosphere of pure negativity "Where is it..." He spoke to himself softly. He eventually found his way into the castle garden, he was surprised to see the two sisters looking down at a large pedestal that looked like it used to hold something "Am I interrupting something?" He said while walking up to the sisters.

The two were startled by his presence. Celestia regained her composure quickly "Why are you the only one back? Are you the only one that knows out of all of them?" She asked him multiple questions, she was obviously worried.

Aiden sighed "Pretty much, I found out John was a distraction. Discord made a illusion that made things a little personal for me. I'm here to kill him." He informed them.

Celestia blinked a few times "You want to kill Discord?" She asked just to make sure she heard him right.

Aiden sighed "Yeah, the little shit messed with our heads, he made me forget about the friend that died in my arms. Like I said, things got personal." He told her.

The two sisters looked at each other before looking back at him. Celestia wore a worried expression "I don't ever remember there ever being a method to actually kill him, There's only one method to stop him without magic." She told him.

Aiden nodded "What's this method?" He asked her.

Celestia sighed "One must be completely resistant to magic, they must find a way to use his own powers on him, but the thing that makes this so hard is that... You must be as chaotic as the God of chaos himself." She told him.

Aiden sighed "what's this guys past? Did daddy not love him enough? Did his whole entire family get murdered or something?" He asked them.

Luna coughed "Uhh, Discord has been around as long as time itself according to the books. Though, it did say something about how he is the only one to really be said to be killed. Most immortals die from age, but Discord is set to be killed by some noble hero, but this is story talk." She informed him.

Aiden stared at them "What's this? The legend of Zelda? I just want to kill him, give me some books that are closest to what I want and I'm pretty sure I can find a way. I've got the magic resistant stuff down, I've got something for that, I just need some info on how to make him weak." He told them.

Celestia sighed "I would highly recommend having the elements along side you, but if you insist on doing this on your own then... Follow Luna, she'll guide you to our archives and fetch the books that you desire. Just, don't die Aiden, you're the biggest thing to happen since the elements. We need you, you're a hidden treasure that is scarce now, you have knowledge, courage, a good heart, not many ponies have that in todays society." She said before walking away.

Luna sighed "Well, follow us this way." She said before turning to go inside.

Luna stacked the last book into Aidens arm, she wore a look of worry while doing so "We hope you can resolve the issues you are having, as well as ours in Equestria." She told him.

Aiden looked at her "It'll be difficult for sure, but I believe that I can do it, I just need to think smart about this." He told her "I'll make sure to get Equestria back into proper working order." He added, hoping to relieve some of her nervousness.

Luna nodded "Thank you for doing this Aiden, most ponies would turn around and run, you on the other hoof, you keep your ground and strike fear into our enemies, we haven't seen that for quite some time now." She thanked the courageous human.

Aiden smiled "Your kind words inspire me to do my best, I'll make sure you never have a problem with Discord after this." He told her, his voice filled with confidence.

Luna smiled as well "Well, I'll leave you to it then. Make sure to return the books after you are finished, these are the only copies left on the planet." She told him before leaving the archives.

Aiden sighed "I can't let them down, not after all that I've been through, including my past back on Earth. I lost friends, I had to kill friends... I lost my father, the rest of my family never truly loved me, I was alone throughout life, and I was so close to taking my worthless life away, but then a fire just... Ignited, I became a fighter, a guy that knows your pain and knows exactly what the solution is. I suppose it's time to show the God of chaos what a human with a rough life can do to scar a few rough images into his brain." He said before setting down the books on a desk in the archives.

Aiden reached into his bag and pulled out his notebook, as well as a pencil. He reached over and grabbed a book before getting to work on jotting down notes about how to kill this chaotic God they call Discord.

The Elements and the troops finally returned back to the castle after a few hours of walking, Twilight hadn't seen Aiden yet, so she was a little worried about where he could be.

They all spotted Princess Luna returning to her bedroom to get some proper rest while the sun was still out.

Twilight ran up to her "Princess! We need your help, Aiden disappeared and we fear he's going to get himself killed trying to kill Discord!" She said quickly, obviously freaking out.

Luna smiled gently "Aiden is okay, he's going solve this problem for us, we did recommend him to have you girls with him but he is set on killing Discord on his own. We saw the determination, we saw the good in his eyes when he said this to us, I have no doubt that Aiden is going to resolve this, it will be hard but he will do it." She informed the lavender unicorn.

Twilight wore a look of confusion "How long has Aiden been here?" She asked Luna.

Luna kept her gentle smile "For quite some time, a few hours at least. Please don't disturb him, he's working very hard on how to solve this the proper way, that is why we believe he can do it, because he doesn't rush into battle, he always researches about how to do it. Now, I do need to receive some rest, today has been a very stressful day." She said before turning around and walking up the stairs to her chambers.

Twilight swallowed hard "I hope I can talk to him tonight." He said with worry in her voice.

All of her friends looked at each other before deciding to do something.

Rainbow Dash spoke first "Twi, are you okay?" She asked the stressed mare.

Twilight sighed "I don't know. I need to ask Aiden that." She answered Rainbow.

Rarity noticed her words "P-perhaps we can assist Aiden, we can make sure this whole thing doesn't get out of control, darling." She tried to cheer up the situation.

Twilight realized something "Aiden wasn't mad because of the illusion!" She shouted with a smile wide on her face.

The others were taken by surprise "Uhh, what?" Applejack said.

Twilight was beaming "He got scared, he thought John was going to hurt us, he thought he failed! That's why he killed it quickly." She was putting the pieces together "That's why he wants to kill Discord! Discord almost, ALMOST, got past Aiden, but now Aiden is after him! Discord knows about him, we haven't seen him once, simply because Aiden has always been around. Is Discord scared of Aiden?" She finally asked herself.

The others were shocked by her question "Woah, woah, woah, Discord? Discord gets scared? He wasn't scared of us, he wasn't scared of the princesses, but you think he's scared of Aiden?" Rainbow asked.

Twilight looked at her "Maybe because he knew we couldn't kill him, but maybe he knows Aiden can!" She said, feeling proud of her conclusion.

Aiden moved onto the second book he had received "I so far need to make a higher dose of that magic resistant medication, I also need to practice on my focus, I need to try and trap him inside of my head when he tries to intrude." He said before reading through some of the second book.

After reading a few pages Aiden rubbed his eyes "I need to make him weak, it says I can do that by showing some of my memories that would surely scar him. I need to mess with his emotions, I also need to be able to get a knife that I can put some of that medication into, once he's weak enough I must stab it into his heart. What is he, a vampire?" He said before reading a little more. "Wait." Aiden slowly started to notice something, he quickly grabbed the first book "There's hidden code here... It was written by... Star Swirl?" Aiden quickly jotted down the coded sentences before putting the pieces together.

Aiden quickly stood up from his chair "That's not possible, how the fuck did he know that." He quickly turned pale. "That's impossible, you'd have to see into the future to know that!" He swallowed hard. Aiden tried to calm himself down as best as possible "How did he know who I am? That clearly fucking says... A human named Aiden is who you're looking for Celestia." He leaned up against the wall. He slowly shook his head "That's impossible... There's no way, no fucking way they knew about me before I even existed." He rubbed his eyes before sitting back down "I guess this means I'm the only one that can do this." He said before picking the book back up.

Twilight entered her room in the castle to finally get some rest, today had been an eventful day. She sighed before entering her bed, it felt emptier, lonelier, without Aiden in it "he must be working hard." She said to herself before laying on her back, she stared at the ceiling, her eyes empty, she was lost in her thoughts. Twilight blinked a few times "I just hope he's okay, I know it must be a lot on his shoulders right, just having to deal with the fact that Equestria is counting on him, families are fans of him," she chuckled a little "There are probably a few ponies that are writing comic books about him, possibly a few are even writing a full story on what he's done so far, they just need to read the newspaper to see what the final conclusion is." She said before perking up at the sound of the door opening.

Aiden stepped in, he had no expression, he was pale, like as if he had seen a ghost "Twilight," he said before looking at her "Who was Celestia and Luna's dad?" He asked, no tone in his voice.

Twilight sat up "I don't know, Princess Celestia and Luna don't ever talk about it, I think it's something more personal." She responded, her voice filled with confusion.

Aiden swallowed "Yeah, I think it's personal too." He said while looking down at the floor.

Twilight stared at him "A-are you okay?" She asked, worried by his behavior.

Aiden ignored her question "Ya know, I've been wondering something... I came here when I was supposed to be dead, but here's the thing, where'd my dad go?" He asked her.

Twilight stared at him "I never really gave it any thought." She answered honestly.

Aiden nodded slowly before looking up at her "I think I know exactly where he went." He told her "And I think our princesses have a few things to answer for me." He said, his tone still absent.

Twilight blinked quickly "Aiden, you're scaring me." She told him.

Aiden clapped his hands before throwing on a fake smile "But this can wait, can't it? Right now I need some sleep, but I would like to say one last thing before I climb into our bed." He said, his expression worrying Twilght.

Twilight stared at him "And what's that?" She asked him.

Aiden smiled wide "I'm not the first human on this planet, I may be now, but there was one thousands of years ago." He informed her "He, like I have, protected Equestria, he was considered a God by the ponies here thousands of years ago, in Equestria he called himself King Arnett." He informed her.

Twilight looked at him closely "How do you if he was a human?" She asked him.

Aiden smiled wide "I have my ways, I tend to solve puzzles without even trying. Oh yeah, I forgot to mention that I know how to kill Discord now." He said before removing his clothes except for his underwear before entering the bed with Twilight.

Twilight wore a surprised expression before laying back down "Goodnight Aiden." She said with not much emotion.

Aiden responded "You too." Before letting sleep claim him.

Twilight sighed "King Arnett, I think that was their father." She before resting her eyes to fall into a deep slumber.

Author's Note

Theories! Theories! Everyone comment what your theory is and I'll like your comment if it's dead on correct!
P.S. Beware that I'm kind of doing my own things, I'm not basing my story off of anyone's thoughts on who the princesses father was.