Twilight looked about nervously. The cool night air smelled frsh after the light rain shower earlier that evening. Quietly she closed the library door and trotted off into thpe night. She had endured alot of late, fighting off so many diffrent threats to her home. She had also endured times of evil burdens in her mind. She wasn't evil by nature, no she had been exposed to it for to long. Thought of wrong doings invaded her mind. Eventually she did the unthinkable. All of her closest friends knew what she had done. A crime that was unforgivable. She only knew of one way to prevent the word from spreading. As soon as she was out of sight from Ponyville she spread her new wings and took off. She was by no means a good flyer, but she was decent enough to get her where she was going. Many years back , Twilight Sparkle had found a cave near the summit of a mountain near the small town. Curious, she entered it. What she found was a demon trapped by magically sealed iron bars. A demon that, in return for souls, would grant any wish. She never mentioned it to anypony, saving her one wish for something critical.
With a heavy 'thud' Twilight landed at the mouth of the cave. She stared inside the empty cave beginning to question this decision. She continued on anyway. The entrance to the cave was worn and old, but the deeper in she went the more untouched the cave walls seemed, mostly because she was the only only pony to step hoof in this cave before. The cave echoed every little sound made, including Twilights steps. The constant noise of hoof steps and dripping water flooded her ears. Soon the cave became very dark and so Twilight lit her horn aglow to light the way. This cave seemed like any other cave at first, but deep within the tunnel a large room spread. The ceiling was tall, the walls wide. This room was cut off from the rest of the cave by the iron bars sealed with magic. She approched the bars, letting her light spell end because two torches on either side of the tunnel were still burning bright.
"Ah, if it isn't the little explorer. It's been many years passing since we last spoke." a voice from the other side rang out, sounding mystical almost yet still intimidating. All Twilight was able to see were two glowing green eyes staring at her, darkness cloaking the rest of it's form.
"Yes. I'm ready to deal with you." Twilights voice was unsure, but strong all the same.
"So the lamb enters the wolves den. What is it your mortal soul desires little lamb?" The demon asked with a slight chuckle.
"I need some ponies to forget things I've done, and I need a dragon to be resurrected as well." Twilight said as a cold sweat broke across her forehead.
"It shall be done, bit for a price. Your undying soul to be my own, along with the dragons soul." The demons voice slowed a bit, but its intimidation faltered not. Twilight considered this for a moment, selling her soul was one thing but selling Spikes soul to. That was something unforgivable. She sighed deeply.
"It's a deal." Twilight uttered. The demon chuckled for s moment before a blinding white light overtook Twilight, and for a moment all she heard was the demons voice.
"Fluttershy, Rainbow Dash, Applejack, Pinkie Pie, Rarity shall know not of your deeds, and Spike shall feel not the cold grip of death you impacted upon him in anger. Now return home."
When next she opened her eyes she was home, in bed, in the middle of the night. A single sound broke the silence of the night, a mystic voice.
"It is done." Then silence once more.