A certain dark being sat on his throne and pondered to himself. He had nearly tricked a purple unicorn into collecting souls for him. It had worked out as planned at first. She had killed over a dozen of her own kind without realizing the true name of who she had done it for. That was the fun for him. He had told her that his name was "Amon" and that he wanted to free her from her suffering by telling her to kill those around her. And she had done so at first. But more then that, she started to resist him towards the end.

"Her will is strong,", he thought to himself. One day he'd get her to side with him. He wanted to do more then just harvest her soul now, he saw the potential in her to be so much more then she currently was. He was the one after all that had corrupted Princess Luna. His daedric magic had tainted the mare and caused the corruption that would lead to Nightmare Moon's birth.

No matter how hard the Princess of the Sun tried to ignore it, that one event kept coming back to haunt her, to laugh in her face when it had the time. How much longer could Celestia keep it secret, how much longer could she keep something like that from being discovered by the ponies she ruled over, much less her own flesh and blood, her own sister. She had kept a very dark and troubling secret from those she cared for, moreover her prized pupil and friend among them. How much longer could she maintain the veil she had set for herself.

Even Celestia knew that "Amon" wasn't her foe's true name. She didn't even want to utter it. She knew what he was capable of. He had raped her and Luna after all. She was able to counter his tainted magic and resist long to find a way to cure herself. Luna wasn't so fortunate though. His corruption of her little sister also led to the creation of Nightmare Moon. Celestia had always regretted banishing her sister, but it was for her own good. She had to keep his real name a secret from her most loyal followers, and from Twilight.

For thousands of years, Celestia had kept a dark secret from the ponies of her empire. It was something worse than when she banished her own sister. It was something that the princess had never told anypony. Over a thousand years ago, before Discord existed, there was a being of pure malice and hatred. It sought to warp everything in its path to its image and saw most of its servants that worshiped it as nothing more than pawns. Their lives meant nothing to this being, not the countless bipedal races across the cosmos, and certainly not some species of quadrupeds on the planet it had to come to visit so long ago. This being tried to corrupt the Elements of Equestrian myth, and for that, it was banished from that world by the only being powerful enough to stand up to it.

Celestia was that being, and what she did would come back to haunt her worse than anything she had ever done before. And all it took was the slow and methodical corruption of her prized student Twilight Sparkle. It would slowly but surely twist her prized pupil's mind and her perceptions. It sought to turn her against her friends and the other element bearers for its own end game. Little did this being realize how powerful she was and much resistance it would be faced with in the end.

Madness isn't something that's easy to describe to others. It's an affliction of the mind that's gradual. It takes years for it to become noticeable at all. That was what happened in the case of Twilight Sparkle. All this time studying friendship and no one could see the underlying signs at all. The lavender unicorn was the most powerful student that Princess Celestia ever had the pleasure to teach privately. And yet out of all of her friends, the only one that had started to notice changes in Twilight's personality, was Rainbow Dash. She began reporting the signs of Twilight's dementia to Celestia without her friend finding out. She didn't want Twilight to do something rash if she had.

Rainbow Dash was told by Princess Celestia to continue monitoring the situation. Now that she knew later on everything that Twilight had done to those ponies, she felt guilty that she didn't try to stop her friend sooner. It wasn't until much later that she discovered what Twilight had done to Applejack. The tan-ish orange earth pony was barely alive when the Royal Guard had been successful in arresting Twilight, and only after what she was doing had been uncovered by Dashie and Fluttershy. Twilight attacked Fluttershy as the Royal Guard cornered her. Twilight was struck by an anti-magic spell before being rendered unconscious and then dragged from the Library.

FLuttershy was rushed to the hospital along with Applejack. Big Mac was found dead in one of the makeshift cells Twilight had constructed under the Library to house her victims. After escorting her friends to the hospital, Rainbow Dash flew back to the Library to try and help with the identification. The Royal Guard had been ordered to allow her access at all times by Princess Celestia.

The list of the ponies that were affected was staggering.

1. Colgate (deceased)
   
2. Lyra(Deceased)
   
3. Applejack (comatose)
   
4. Big Macintosh (deceased)
   
5. Fluttershy ( hospitalized after Twilight attacked her before the arrest )
   
6. Diamond Tiara ( Maimed)
   
7. Lemon Hearts ( deceased )
   
8. Carrot Top ( butchered, literally )
   
9. Pinkie (missing)
   
10. Raindrops ( crippled )

The rest of the list was too long for her to go on reading without becoming sick. IN all 34 ponies had been either killed, butchered, or outright maimed by Twilight's actions. How was she going to break it to Applejack that Big Mac was never coming back because of Twi? Rainbow Dash left the Library and flew up to the nearest cloud and let it all out. All that death and suffering had nearly suffocated her in there. She needed to get some fresh air. There wasn't much that she or Celestia could do to curb the news from spreading through the town.

Not that it would have helped to try and curtail it. News always did have a way of making itself known across town, Ponyville was still considered a hamlet, it was still pretty small despite some of the new construction going on, but it was never going to become like Manehattan or Winnieapplois. There had been a provision signed by the Princesses that Ponyville was to remain the way it was, no matter what the clergy thought about adding to it. The town had seen some pretty crazy things in its history. The Ursa Minor that Snips and Snails were dumb enough to wake up, the Parasprites that had tried to eat the town after Twilight's spell on them had an adverse effect, or the time that Trixie came back wanting revenge and tried to use the Alicorn Amulet, which was safely hidden again thank the stars.

This was different, however. There was an atmosphere of fear lingering in the town now. What she had done was unforgivable to the highest degree, at least until the investigation was completed, Celestia thought to herself. She desperately wanted to prove that there must have been a hidden force behind Twilight's recent actions. There was no possible way that she had committed such deeds on her own volition. Until that was determined she was now branded a monster.

Twilight was now known as the Butcher of Ponyville.

Canterlot Tower

There was no denying she had heard from Dash or the others, but there was a nagging feeling that Celestia could not shake from her mind. Could this be his handy work again after all these millennia? It was safe to say that no matter what, she'd have Dash and their other friends get to the bottom of what made their dear Twilight turn into this monster that was awaiting trial now. Celestia thought back ever so briefly to an encounter she had while investigating a parallel world with Starswirl. She had never told anypony of what the horrors of war could do to someone. The world they had visited was in chaos, the humans there were in the middle of a global conflict that spanned nations. Tia didn't know what could be worse, hearing the sound of artillery in the dead of night, or seeing the bloody aftermath of it all.

That one memory reminded her of what she had seen in the basement of the Golden Oaks Library. And it was all too much for the Princess to bear, and yet she still had to compose herself so her subjects wouldn't see the small sign of weakness or doubt. She had more questions than she did answers, something that would change very soon. But as of right now she had to focus.

There was little to say at this point. Mass murder was the most uncommon crime in Equestria. No pony had killed another in this fashion in over a 100 years or longer. It was unheard of, to say the least.

"Are you sure my Sister?",Luna asked Celestia. She could see the pain in Celestia's eyes. She had her answer in more ways than one. How could their closest friend fall so far from grace? How could Twilight of just gone and butcher all those poor souls that she had lured to Library? But what was this incessant boasting about the 'Greater good?' that she kept rambling on about. That was the only confusing aspect of the whole thing. Had something forced Twilight to do this?

"I'm positive, Luna, this is the only course for now," She explained to her sister, even though it was difficult to accept.

Luna simply nodded back at her older sister. It wasn't exactly easy, this much she could tell on her own.

Rainbow Dash sat there, waiting for the Princesses to finish their meeting with the Tribunal. It was still ringing in her head what the Princess of the sun had told her since last night. She felt a pit where her heart used to be. How? she still asked herself. How could her best friend have done something so unspeakable? The Twilight Sparkle being held over for trial was no longer the unicorn she had once been close friends with. What's more was that she claimed to of been ordered to do so by an alien race. Was Twilight suffering a mental breakdown? Is that why she did what she did? The thing that confused them the most was when she spoke in a Canterlot voice and proclaimed it was for the greater good.

But when she got to the fourth and fifth entries, what she read next truly disgusted her.

Twilight had been moved to a more spacious cell, one with an anti magically enchanted glass front.

While that was taking place Rainbow was reading a list of the names of ponies either killed or affected by what Twilight had done. Along with what appeared to note Twilight had made on the effects of the Experiments she had been conducting. It wasn't exactly light reading as far as Rainbow Dash was concerned. The notes were meticulous and downright brutal in explanation.

Test subject 1
Lyra Heartstrings

Test notes: I exposed Ms. Heartstrings to various drugs, one of which was Ketamine. I exposed her to massive amounts of it last night. I made sure the dosage wasn't enough to kill her, but she will become addicted to it unless another option is made available.

Test Subject 2
Colgate/Minuette

Exposed my old friend Colgate to a high dose of Fluorine. Her organs shut down within moments of exposure to the high dosage. Recorded that her lungs filled with fluid upon receipt of the fatal dose. Subject basically drowned in her own fluids as a result.

Test Subject 3

Caramel Appletart

Test subject died as a result of lack of food. I wanted to see how long it would take a pony to suffer from starvation before dying. Safe to say it only took four days for the subject to die from severe dehydration as a result of the lack of food.

Test Subjects 4 and 5

Applejack and Big Mac

I used my magic to force a feeding tube down AJ's throat and pumped a sufficient amount of sedatives down her throat until she was nearly drugged out of her mind. I then brought in her brother, whom I had subdued under a mind control spell, and commanded him to fuck her repeatedly.

I repeated the process the next day. This time I forced Big Mac to sodomize Applejack over and over until she passed out from the drug dosage I gave her. I don't know why but I barely feel anything towards them anymore. I used her brother as a personal slave since the mind control spell has left him permanently under my control. He no longer recognizes anything but the commands I give him.

Rainbow Dash could not believe what she was reading. She threw the clipboard down to the ground and just stared at the door to where they were holding Twilight. Before anypony could stop her, she broke down the door to the holding cell and stood outside of Twilight's Prison cell with a disdained look on her face. Dash could tell that Twilight looked as though she didn't care anymore. She was just another sack of meat to her.

"Let me guess Dash, you came back to instill friendship in me again?", Twilight said coldly.

" I can't understand why you had to be so brutal, They were are friends for pony's sake Twilight!", Rainbow screamed at the lavender unicorn.

"I had to do what needed to be done Dash, It was for the greater good of Equestria, can't you understand that?", Twilight reciprocated.

"Do you really believe that Twilight?!?!", Dash said, growing more disgusted with each passing hour.

"Listen to you drone on, I did what had to be done DASH!", Her Canterlot voice reverberated against the glass, causing an echo effect against it. " I put them out of their misery, you know that?", Twilight continued. She sounded like she was almost proud of the things she did. And that made Dash even more sickened by what she was hearing.

"You admit it then, these atrocities you're accused of?", Dash asked, more calmly than she was earlier.

"I ADMIT EVERYTHING, WHY NOT?!", she boasted, "I was the Best at my skill, and my accomplishments speak for themselves, andI know you know that," She was still being prideful, Rainbow could taste it.

"Well Make sure you tell that to the Tribunal Twilight," Dash spat back at her.

"Oh don't worry my dear Rainbow, I will my dear," Twilight was being unrestrained in her wording now.

"And they'll sentence you to death Twilight, to death?!", Dash could feel herself break now, "What you did is punishable by death Twilight!", The floodgates were about to burst in Rainbow Dash's mind any moment now.

"But it doesn't change anything Rainbow, Kill me, Torture me, IT DOESNT MATTER, YOU ALREADY LOST RAINBOW, YOU CAN NEVER UNDO WHAT I'VE ACCOMPLISHED, THE DEAD WILL STILL BE DEAD DASHIE!!!!", Her voice was booming inside the prison cell again. Twilight was nearly beside herself in arrogance.

"You're truly insane Twilight, truly insane", Rainbow trailed off as she left the room. She had enough for one day and night. Her mind had to recover from everything she had just heard in there.

"What you call insanity my dear, I call a day's work." There was an aura of arrogance around Twilight when she spoke those words. Rainbow Dash couldn't take any more of it and bolt out of the room. She couldn't believe what she had heard in there. The Twilight Sparkle she knew was truly gone.

Author's Note

Hope you all enjoy this. i never would of consider doing something like this if it wasn't for LostNarrator, she really inspired in some regards. AND SHE CAN RAP XD.