Rarity has been a notorious jewel thief for years, and she is only growing more bold with every passing day. Her sins comes back to haunt her, however, when her latest heist draws the attention of the royal guard and unleashes an ancient evil on the Crystal Empire. With family and friends in the line of fire and a newfound power at her back, can she right her wrongs before the shadows consume Equestria... or will the sacrifice be too great for her to bear?