Normally in these tales, when ponies of great magical power try to cast an ancient and forbidden spell, it is their failure that leads to tragedy.

Unfortunately for Ponyville, when Starlight helps Twilight with a damaged and obscure Cutie Mark spell, the casting works perfectly. If only they had known what the spell would do...

A horror story done in the style of H.P. Lovecraft. Edited by Mushroom, with much thanks to SunlightRays for the inspiration, and Snow Quill for the cover art.