When Twilight runs out of royal duties and busy work, she decides on another way to spend her time while her friends are away. Using the mirror portal, she finds her Canterlot High friends. However, is there something wrong with Sunset Shimmer?
Trixie lost everything to the Alicorn Amulet. But, after Trixie is tricked into becoming the new host of the Nightmare, she is the only mare who can save Equestria from eternal darkness, if she wants to.