Right before the big Canterlot Wedding, Twilight Sparkle makes a 'false' accusation against 'Princess Cadence.' Abandoned by her friends, teacher, and brother, the heartbroken pony experiences conflicting feelings of guilt and anger. Seizing this opportunity, Chrysalis takes in the fragile unicorn as her protege for her plan to plunge Equestria in darkness and chaos. With the Elements useless and the world being torn apart, how can Princess Celestia and the Elements possibly undo the damage they could've so easily prevented? And will Twilight be able to push away the darkness, or lose herself to it?

Note: Alternate Universe because of a few....'secrets' certain characters have, as well as obvious other reasons.