In the wake of Discord's return to stone and a restored peace to Equestria, the world is again plummeted into darkness as an ancient, forgotten evil returns. Celestia and Luna quickly find themselves forced into a deadly tournament, as Twilight and her friends race against time to save them.
Although this story features Pen Stroke's Nyx (Past Sins), this story itself is not related to Past Sins, nor does it require a reading of Past Sins.