A fairy-tale style story about the novice mage Twilight Sparkle of the Crystal Empire and her quest to retrieve the Lady Rarity from the clutches of an evil sorceress who has imprisoned her. (RariTwi #4 Contest Entry)
Traditionally, in Equestria, the carpet matches the drapes. And when the drapes can't be matched, there's no carpet. Unfortunately, Celestia forgot to mention that detail to Twilight.