It's the day before Nightmare Night, and Apple Bloom, Scootaloo, and Sweetie Belle are setting up a party in the crystal treehouse formed from the Tree of Harmony to surprise the Young Six. One thing they definitely didn't expect was being the target of Nightmare's newfound power. Especially since she'd been banished and connected to no creature. The dark magic shifts them into three different things, that aren't ponies, or at least not completely. What's best to do, keep it a secret, or hope it's all a nightmare?