Searching for any records King Sombra may have left behind, Twilight learned of the shadowy king's tragic past. However, she also discovered his horn, in which his mind and remaining power were contained. Determined to learn how to use his Dark Magic for Good, Twilight brought Sombra back to Ponyville with her. After all, what could he possibly do as a horn? ...Or will he stay that way?

Edited by Darth Vendar and Myrkur
Inspired by Issue #1 of FIENDship is Magic
Gore tag just to be safe.

Edit 06/15/23: Now in the top 2K stories on the site, by rating! Thank you all!

Celestia had to burn twilight sparkle to stop her at the entrance exam. After 21 years of living in the everfree, the feral creature known as twilight sparkle is begining to regain her power.Join her on her journey to defeat the white monster from her memories and the pink pony that hunts her everyday. Heavily inspired by this.http://www.fimfiction.net/story/78582/the-monster-in-the-twilight