Sunset Shimmer returns to Equestria to enjoy a traditional Hearth's Warming Party, and happens to meet a rather charming stallion named Sunburst. However, when Stellar Flare sees the pair, she makes a dramatic revelation.
With Sombra threatening pony and changeling alike, Chrysalis and Celestia begrudgingly agree to an alliance. Neither is happy at first. Yet, as they work together, they discover lasting peace, and perhaps more, is possible.
There is a bit of truth to every legend, though the ravages of time can bury it deeply. One of Equestria’s oldest legends is the core of Nightmare Night. Yet, how much of the old legend is true, and how much is fiction?