Twilight, Rainbow Dash, Rarity, Applejack, Pinkie Pie, and Fluttershy (human world) find themselves face-to-face with Sunset Shimmer with a sledgehammer and ready to destroy the portal back to Equestria. Twilight tells Sunset not to hurt Spike; Sunset tells Snips and Snails to let Spike go. Sunset then gives Twilight an ultimatum: give the crown back and be allowed to return to Equestria, or keep the crown and never go back. Twilight, maintaining her fortitude, keeps the crown. Surprised by this, Sunset tries to reason with Twilight to hand over the crown, to which Twilight replies by explaining she's seen what Sunset has been able to do to Canterlot High even without the magic the crown will give her

Sunset appears to give up, throwing the sledgehammer down. Twilight's friends surround her and commend her selflessness. Hearing the flurry of kind words directed towards Twilight, Sunset loses her temper and charges at Twilight, tackling her and knocking the crown off her head. During the minutes that follow, the crown repeatedly trades hands as Twilight and her friends attempt to keep it away from Sunset, Snips, and Snails. In a moment of absent-mindedness, Twilight tosses the crown away, and it ends up in Sunset's hands

Sunset immediately places the crown on her head. As soon as she does this, a magic aura surrounds her and she is lifted up into the air. Twilight, her friends, and onlooking Fall Formal attendees watch in horror as Sunset is surrounded by a dark aura and transformed into a demonic creature, with red skin, fiery hair, wings, and a tail. Using her magic, Sunset proceeds to turn Snips and Snails into demons similar in appearance. The students retreat to the supposed safety of the school doors, but the transformed Sunset tears away the entire front entrance, declaring herself the students' "princess" and demanding their loyalty. She flies into the school and projects her magic onto the students, hypnotizing them into submission

Rarity: What do we do now Twilight?

Twilight: I don't know.