When Rarity finds a new room hidden bellow the Carousal Boutique things begin to get odd, two ponies close to her are hospitalized, Sweetie Belle begins to act out, she begins having strange dreams, and several odd things begin to happen around the boutique. Soon Zecora's Nephew and his friends arrive and tell Rarity that the room held something that should be locked away in Tartarus and now it has been....

Unleashed!