Disclaimer: I own nothing in this story. My Little Pony belongs to Hasbro. Thor, Loki, Odin, and Frigga belong to Marvel. I also don't own Thor and Loki's pony designs, they belong to lizzytheviking from Deviantart. I also don't own Nexus, he belongs to Penstroke. I also don't own the song Organization XIII Theme.

The scene showed Thor walking alongside some of the Royal Guards and his parents towards the two Royal Guards blocking Loki and the other soldiers. The two Royal Guards nodded as they saw Odin and Frigga and moved out of the way, so Thor could get to Loki. “Thor, why are you…” Loki stammered in shock.

“I am here to arrest you.” Thor replied as he gestured to the Royal Guards behind him. “Is that so?” Loki asked with a sly smile. “Have you come to finish our battle at last? Well, now is the perfect chance to end this.”

“I did not come to fight you!” Thor snapped. “Hmm, then why do you want to arrest me?” Loki smirked.

“To have you pay for your crimes from killing Twilight’s friend from when she was a filly to attempting to kill Twilight, her friends, the Princesses, and me!” Thor declared with a serious expression. “You want me to surrender to you ponies? I shall not!” Loki scoffed. “Why are truly against Twilight?” Thor asked in confusion. “One of the reasons is that she is a pony working with the Princesses!” Loki answered in annoyance. “That is it? Just because she is Princess Celestia’s student and that she is a pony?” Thor responded with a shocked expression. “Why, yes. Ponies have broken me thanks to YOUR father!” Loki snarled.

“Why must you bring up father telling you about your true parentage?” Thor groaned, facehoofing himself. “Which brings me to tell you what happened after that fateful day…” Loki began with a snarl. “The day of meeting Nexus while I was in the cave I killed Twilight Sparkle’s friend in.”

“Is this the pony you were talking to while I was preparing that attack that blasted you?” Thor asked in remembering the pony in the window. “That would be Nexus, hear my words…he is more demon than anything you have ever came across.” Loki stated. “The only thing that keeps anypony safe from him is that he has kept powers and all in the deepest center of Tartarus…but that does not mean he shall try something like I have done on a helpless creature. And while I am powerful, Nexus could ever be said to be closer to my power. And they are TEN TIMES more powerful than me.”

“Ten times more powerful?” Thor gasped in shock. “Anyways, as I was saying…It is also the fate…when I would live with the task I receive from meeting a pony…named Dinky.” Loki groaned in annoyance while rolling his eyes.

Flashback:

Loki looked angered and saddened as he gazed at Princess Celestia’s School for Gifted Unicorns from the cave he was in. It was all Odin’s fault that he never knew about his true parentage. He wanted…revenge. “My, my, getting devastated, are we?” A voice asked which made Loki yelp in seeing some window to a fiery pit appearing. “Who are you?!” Loki demanded furiously as he wiped some tears away while an unknown stranger appeared in the window.

“Just somepony who looks out for a pony like you…”

“I am not a pony, shut it! I am a monster parents tell their foals about at night!”

The stranger chuckled a bit, saying, “Forgive me, I meant that in a helping way. I have been watching you. You have been through a lot lately, I see?” “I…I have.” Loki said, looking back at the academy in rage. “I found out that I am Laufey’s son and the last of the Ice Ponies. ARGH! I HATE PONIES! I DO!”

“How ironic…and Ice Ponies were a type of ponies centuries ago before your adoptive father and the Princess executed them all.”

“How do you know of the Ice Pony War?”

“Let me say that I have my ways…perhaps I can help you destroy these ponies.” The stranger said thoughtfully. “And how do you attend on doing that?” Loki asked doubtfully.

The stranger smirked as he held up his hoof…and his horn glowed. Loki yelped as he felt like he was affected by some sort of power, causing him to fall to the ground…soon, everything stopped and things went back to the way they were. “What did you do to me?!” Loki demanded to the stranger, rubbing his now neck length choppy mane.

“I gave you more power than what you already had. Feel free to thank me again when we meet once more…you may want my assistance again. And in case you want to know…my name is Nexus.” The stranger known as Nexus remarked as he laughed while vanishing. Loki groaned a bit as he got up and sighed while staring where his new ally used to be.

Loki growled furiously while grumbling, “He could never have an Ice Pony sitting on the throne of Ponyheim! Thor and the ponies from Equestria must pay…somehow.” Just then, he spotted something, two fillies walking through the cave. The gray Alicorn stallion smirked sinisterly…revenge. “Wait, what’s that?” Dinky asked Twilight in concern while looking around the cave as she heard a sound. “Dinky, we can’t diddle-daddle. I gotta get these mushrooms back to the School for Gifted Unicorns by tonight.” Twilight said, picking some mushrooms that the princess wanted her to get for her lesson. A familiar growl was heard, startling the two fillies. Dinky asked, “Twilight, w-what was that?”

“Precious, it is good to see you at last, little precious.” A familiar voice hissed out. The two fillies gasped as Loki came out of the shadows. “Welcome to my temporary hideout, say the spider…to the doomed flies!” He snarled. “What do you want?” Twilight demanded furiously as Dinky hid behind her. “W-W-Who are you?” Dinky stammered.

“I am Loki. Little foals should never trespass on somepony’s property.” Loki remarked insanely. “I was tasked to do this by the princess! You can’t tell me what to do!” Twilight retorted. “Naughty, naughty, young one.” Loki hissed like a snake. “Now hold still and your death will be finished much faster without a fuss!” He lunged at Twilight, but Dinky quickly head-butted him, knocking the pony away from her friend.

“Run, Twilight, run!” Dinky shouted. Twilight didn’t hesitate; she quickly made a run for it. The young filly looked back in horror as the one who told her to run followed her, but was caught by Loki. “Foolish filly, you cannot run from me.” Loki’s voice growled evilly. Twilight can only watch in horror as he fired a knife and killed her friend. “Dinky, no!” She screamed, seeing blood on the floor. “NOOOOOOOOOOOOOOOOOOOOOOO!”

“And now…it is your turn!” Loki said sinisterly to Twilight. He prepared to lunge to her, but Twilight fired a spell that hit the ceiling. A bunch of rocks fell right in front of the stallion, keeping him from the filly who the opportunity to escape. “NOOOOOOOOOOOOOOOO! YOU CANNOT ESCAPE!” Loki exclaimed furiously as he blasted the rocks which caused it to collapse. But to his shock and fury, the one he wanted to kill escaped. “Lost! LOST! That brat has escaped from my hooves!” The stallion screamed furiously. “Killer Twilight Sparkle! Killer! Killer Twilight Sparkle! We hates it forever! We hates it forever! WE HATES IT FOREVER!” In his fit of rage, a portal appeared and something removed Dinky’s body from where it was lying, so nopony would find out that the body was there as the portal vanished.

End of Flashback

Thor stared in shock and anger in what he heard about what happened leading up to this current situation, but he sighed and turned to the Royal Guards. “Arrest him.” He commanded in sadness.

“WHAT?! NO! I REFUSE TO BE ARRESTED! I WILL HAVE MY REVENGE!” Loki shouted insanely while the Royal Guards approached him, levitating or holding a pair of chains and a muzzle. The Royal Guards just ignored him and snapped the chains onto his front hooves while a unicorn guard levitated a muzzle onto his mouth. Loki glared in pure hatred at Thor who just gave him a saddened expression. “Thor, Thor!” Twilight’s voice called out, breaking the silence of the moment. “I am here, Twilight!” Thor yelled back at her. “Thank goodness!” Twilight sighed in relief with a smile. “When you, some of the Royal Guards, and your parents went to this area, everypony got worried, so I went looking for you.” “Well…I was arresting Loki.” Thor responded sadly. “Oh, Thor…I’m sorry you had to arrest your own adoptive brother, but he was an evil pony.” Twilight reassured him.

“Twilight…I know he was an evil pony, but he is my adoptive brother. I still love him even though he is evil.” Thor sighed. “You know what, Thor; that sounded like you’ve learned an important lesson.” Twilight smiled gently. “Come on, let’s get back to the others.” “Yes, I am coming.” Thor nodded. The scene changed to where Twilight and Thor joined the center of the town where they were welcomed with smiles from the other members of the Main Six and all their friends from the battle. There were many sighs of relief to see Thor unharmed, mostly from Pinkie, The Cutie Mark Crusaders, and Spike. There were many questions as to what Thor was doing in the corner with those Royal Guards.

“Everypony, everypony!” Spike exclaimed with a chuckle. “We still have a party here. Save the questions for later.”

“Right, this is a party! Let’s go!” Pinkie giggled. Celestia and Luna walked up to Thor with Odin and Frigga following behind them.

“Thor, we thank you for saving Equestria from your adoptive brother.” Luna said. Thor paused a bit and then spoke up, “Princesses, father, mother, do you think that after this, do I have to return to Ponyheim?”

“Let your mother and I decide on that, my son.” Odin replied while he patted his head. Celestia nodded while adding, “Right, let your parents decide, but for now, let’s continue the party.” Thor nodded in agreement. Celestia and his father were right. They had to wait to see if he could return to Ponyheim with his family. While everypony was celebrating and enjoying themselves, nopony took notice in the shady figure hiding in the corner.

This pony could only be seen by the eyes hiding in the shadows that hid her so well. This being watched everypony enjoy the moment of their lives, but as she looked past the fun the Cutie Mark Crusaders were having with some of the members of the Main Six, showing themselves off and doing other tasks with their friends…one sight caught the figure’s attention. There she was, the unicorn Twilight Sparkle, near her was her parents, even the mare’s older brother, Shining Armor, along with his wife, Cadance. They looked so happy and carefree; it was only joined by Thor and Spike who decided to have some fun, laughing with the rest. Just then, the shady eyes of this stalker stared at the alicorn and baby dragon and in a flash moment, there existed another being…a young filly that was once friends with Twilight; Dinky? The eyes of the shady figure shook it’s head to make the image fade away, showing Thor and Spike once more. Then, the eyes slipped into the darkness and from a glowing mark above the head, it vanished with the shadows by a very well played stealth maneuver that made no sound. “Huh?” Luna asked, sensing something wrong. “What’s wrong, princess?” Apple Bloom questioned Luna.

“I thought I sensed something odd…”

Soon, outside of Ponyville, from the shadows of a large bolder, slipped a shady creature that resembled the body of a pony. Then, a bit of light from the sun’s rays passing through a cloud briefly helped reveal who this unidentified creature was. She appeared to be a unicorn in a dark mask and uniform with the symbol of Tartarus on the front, appearing to be the same age as Twilight. Her mane was blonde with lighter streaks; she had a cold expression and looked…familiar.

Soon, she reached up to show a strange pocket watch that when opened, revealed a mirror above the clock that glowed brightly, but not too bright to expose where this character hid. Then, in another strange sense, ‘Organization XIII Theme’ from Kingdom Hearts 2 began playing to fit this scene of unpleasantness. “Status report, Unit Number 13.” A voice spoke up from the mirror light of the watch. “Yes, I’ve seen the ponies and they’re just recovering from the battle they all fought in. While the whereabouts of Loki’s arrest are still legit, the older adoptive brother and true son of Odin, Thor is still alive.” The one labeled as number 13 responded with a cold and emotionless expression. “What other news do you have of the situation?”

The voice from the other side of the light asked. “Not much, only that the remaining soldiers from Loki’s army that weren’t blown away or turned to dust, have been arrested.” Number 13 explained to her superior. “What do we do about the other members of Loki’s army?” “Let them be, with Discord in hiding with the others and The Red Devil clearly weakened, they can’t be helped.” The voice from the mirror responded.

“If they truly wish to join us, that’s their problem to pick. It would not count as a major loss.” “What if they choose to side with Equestria?” Number 13 asked nervously. “As I said, it would not be our own lost cause if they perished afterwards.” The voice from the mirror responded emotionlessly. “Just watch everything from the shadows and report all events and should anypony get in your way…finish them.” “Hmm…” The unit hummed to herself with her eyes drifting a bit far from hearing that order. “Is something wrong?” The voice from the mirror questioned. “No, I just recall seeing some ponies I once knew, but of course, nothing has changed my opinion of what’s happened.” Unit Number 13 told her superior with a stern and cold expression.

“Excellent, remember who you are, Equestrian Eliminator and those you serve.” The voice on the other side addressed the soldier. “I serve as a soldier, a mercenary that will take my assignment, to the letter…and leave no survivors that stand in my way.” The Equestrian Eliminator declared as she shook her hoof in determination. “Good, carry on and remember…we abide the might of Nexus’s Law!” The voice concluded while the mirror ceased glowing just as it was closed and the pocket watch was stuffed back inside the unit’s uniform.

“I remember, the will of Nexus’s Law shall be judged to all. Including those who have forsaken me…Equestria, you’ll soon be unleashing a wrath far worse than Loki ever could…and there will be no pity for all those, including your own existence…Twilight Sparkle.” The Equestrian Eliminator vowed before slipping away in the shadows by the magical glow of her horn. With that, the unknown mare of mystery was out of the picture and just as the music was coming to a close too. So now, what happens with Equestria, even with Twilight being the main center once again…something will come forth from this dark mystery.