Author's note: This story is a sequel to my other story, To Reassemble A Broken Heart. If you've already read that one, you can skip this author's note. If you want to read this story without reading the first one, continue reading this note so you won't get confused.
Here are the things new readers need to know:
1-First of all, you should be familiar with the Reflections comic arc from the official MLP comics before you read any of the two stories (you can check the arc's summary on the mlp wiki).
2-The story is Alternate Universe, but for minor reasons. The events of the second half of Season 5 and afterwards aren't canceled here, but changed slightly. That's all.
3-Celestia and Alternate Sombra married at the end of the first story (duh!) and are living in Canterlot in the original Equestria.
4-Alternate Trixie and Alternate Discord are married, too. But at the end of the first story, the original Discord and Trixie were getting along with each other as well. (Weird ship, I know. Sue me.)
5-All of the Mane 6 were shipped! And since the sequel takes place around 6 years later, you know what to expect. But don't worry, that won't affect the story much, not to mention that it's not the focus of the story.
6-Traveling to the Mirror Equestria is no more dangerous.
7-I reformed the Mirror versions of Shining Armor and Cadance during the first story. But don't worry, their personalities are still the same (AU Shining is still a doormat and AU Cadance is still cruel, but they aren't evil anymore).
8- Flash Sentry (the pony version) is scared of quesadillas just like Twilight (small detail, but I feel I should mention it). His personality is also quite different from the human version.
Now, on to the story! Thanks to Zoetic Zebra (from FIMfiction) for the edit.
The buildings of Tambelon suffered with each blow the two overpowered beings gave to each other. On one side stood Grogar; a gargantuan goat with an azure coat and crimson eyes. . Around his neck he had fastened a bell, channeling deep arcana. On the other side, Tiara, the Princess of Tambelon; a white Alicorn with massive wings and a mane that shone with all the colors of the rainbow. She was also wearing a bell around her neck. Her coat was adorned with golden embellishment that resembled the veins of a plant.
The good thing, which was also a bad thing, was that the most of the Tambelonian ponies had left their houses once Grogar's attack had started. There were too few innocent ponies that it was guaranteed there would be no casualties. However, at the same time Tambelon was empty and was about to be lost to Grogar and his feral companions.
Blow after blow, Tiara and Grogar appeared to be evenly matched, Grogar was slowly taking over, as Tiara was beginning to lose strength. He punched Tiara again, sending her shooting through a building then rolling on the ground.
The princess stood up, a fierce glare on her face. When Grogar lunged at her again, she flapped her massive wings in his direction with all her might, producing a shock wave so strong it threw Grogar away and created a wide, shallow trench on the ground. Before Grogar could stand up again, Tiara swooped at him and punched him in the face. Magic and brutality combined as Tiara sent a magical blast, keeping the invader immobilized.
"That's enough, Grogar," the princess said taut, trotting towards Grogar as the smoke around him began to fade. She did her best to keep her hooves as steady as possible under the pain of her injuries. "It doesn't have to end like this. You can stop it right now."
Grogar stood up slowly,his breathing shallow. He spoke with a deep, dark voice, "I can, but I don't want to." A red, glowing ball of magic formed between his horns, then a beam of energy was released from it and towards Tiara.
The princess countered the attack with a beam of her own. The two beams met in the middle, producing a bright explosion and blocking Tiara's vision.
Grogar took advantage and swooped at the princess, pinning her to the ground. He then punched her in the face twice, making her head sink in a small hole in the ground, before levitating her with his magic and slamming her on the ground several times. Grogar resumed by throwing her in the air and headbutting her, sending her flying into the roof of a building.
Tiara landed on the roof, the impact taking away a big portion of it. She wiped the blood off her nose then stood up with shaky steps.
"You left me no choice," the princess said. "but this has to stop. I… assure you your death shall be painless. "
Tiara grabbed the bell around her neck and rang it, but nothing happened. She looked at the bell with confusion, ringing it again, but there was still no response. "No…" She fell to her knees, shutting her eyes tightly and gritting her teeth. "That's what I was afraid of."
Grogar jumped to the roof where Tiara was standing and pinned her down, looking down at her with a wicked smirk. "See, Tiara? You're not fit to rule. You've always been. That's why I must overthrow you."
With her face hidden under her mane, Tiara started chuckling, but she quickly burst into audible laughter.
Grogar's smirk disappeared. "What's so funny?"
"You are!" Tiara replied, blowing her mane off her face. "I'm a terrible ruler? Then who's the great, benevolent ruler that will replace me? You? Do you really think you can be better than me?" She placed her forelegs behind her head, the sarcastic smile never leaving her face. "I'd love to see you trying."
Grogar brought his hoof down on her face, throwing her into the ground. Tiara's impact with the ground created a small trench, before she could take her breath and stand up slowly, struggling against her injuries.
"Unfortunately, you won't live long enough to see me trying." Grogar started floating with his magic, then a massive ball of energy formed above his head.
Tiara flapped her wings slowly, levitating herself a couple of feet off the ground. She furrowed her eyes and gave a battlecry, before her body was surrounded with a golden aura, her horn blazing blindingly.
Grogar, still wearing an emotionless expression, sent the ball of energy towards Tiara.
Seeing the blast getting closer, Tiara released a powerful, continuous beam from her horn and into the ball of energy, stopping it mid air and even pushing it back slightly. The impact between the ball and the beam produced a shock wave that destroyed the windows of every house nearby.
A few seconds later, the ball started progressing towards Tiara again, beating her beam. She channeled more energy into the attack, but her body was too weak to last any longer. She landed on the ground, still struggling against Grogar's attack, but her beam quickly gave away and the ball of energy hit her.
The resulting explosion was massive, taking away several houses in it's way and creating a wide crater. Tiara was hurled back far away from where she was standing. Grogar jumped down from the house he was standing on and trotted towards the princess.
"I...I'm sorry, Tambelon," Tiara whispered to herself, lying motionless on the ground. She coughed a sour crimson before talking again. "I have failed you." With the strength she still had in her, she levitated the bell that was around her neck. "But... I won't fail Equestria." She whispered a few words to the bell, as if it could understand what she was saying, and then, the bell was shot outside of Tambelon like a shooting star, landing in the horizon.
"What the hell?" Groagar said to himself as he trotted towards Tiara.
Suddenly, a white circle of magic surrounded Tambelon, then a huge magical dome covered it from above.
Grogar widened his eyes and turned to Tiara. "What did you do?!" When he received no response, he teleported to where she was lying and pinned her down. "WHAT DID YOU DO?!"
Tiara's coat was pale and her eyes had lost their glimmer. Still, she smirked. "I used all the magic that was left inside me. I won't let you extend your harm to Equestria."
"So you're banishing all of Tambelon?!"
"If I can't win this fight, then I won't let you win, either." She looked up at Grogar, her smirk even wider. "That's an enough victory for me."
Grogar gritted his teeth in anger, glaring fiercely at the princess who, despite being powerless, had managed to defeat him somehow. He pulled his foreleg back, then brought it down at Tiara with all his might, giving her the death blow.
The huge white dome that was containing Tambelon shrunk quickly into a small ball of light, then vanished into thin air, taking all of Tambelon with it.