During one fateful Nightmare Night, a last-minute costume choice turns Princess Twilight's student into a hero.

Sunset Shimmer's Hearth's Warming Eve celebration is cut short when she spots a suspicious figure lurking outside. After a festive costume makeover, she sets out as the Mysterious Mare-Do-Well to investigate.

A shooting star in Ponyville marks the arrival of the first Star Child. (Prequel to "Freedom Yoshi Planet" by LawtonCash.)