Everything comes at a cost. Somewhere along the lines of her impersonations and machinations, Queen Chrysalis forgot that, but it didn't take long for Fate to remind her. Canterlot is hers, and soon all of Equestria will fall under her rule, but deep beneath the ground on which her new throne sits is the one who paid the price for her perfect day.
Chrysalis owns Equestria, but Twilight Sparkle is as close to death as one can be: frozen in time, a fraction of a second before her soul would have vacated her mortal shell forever, and hidden in the Crystal Caves until Chrysalis can think of a way to save her.
But the new Queen of Equestria has more problems to deal with than one near-dead unicorn: elsewhere in the world, Princess Luna is gathering forces to drive her out, whilst wheels within wheels turn inside Chrysalis's own government and in the frozen north, an Empire and the tyrant who banished it grow closer to returning by the day.
Note For New Readers: Whilst this story is cancelled, I will be writing another with the same base premise in the near future. A blog post for this version will be posted to notify you when the redo is on site.