Rarity is a castaway. Thrown out by the world, left to her own devices. In the dystopian future of Equestria there are no alicorns, no immortal beings left to save us from the doom we bring upon ourselves. She must fight her own battles against forces working to undo the world and its inhabitants. The Great Hearth is dimming, the world will perish if it goes out. Will our heroine be able to save Equestria and the lands beyond or will they be condemned to a cold fate.