Sunset Shimmer's diplomatic visit doesn't go quite as planned. Especially when nudged off the rails by a lot of booze, some minor flirting, and an entire truckload of bad decisions.
Few ponies know how Equestria came to be and many would neither believe nor like the story. Of course the Royal Sisters knew all along. And today is the day Twilight Sparkle also learns the truth.
A scroll summons Trixie for a night with the Princess of Equestria. It would help Trixie though, if she knew which of the possible princesses actually sent it.
Twilight Sparkle has lived a full life but now she's a 115-year-old pony lying on her deathbed and waiting to pass on. As her time draws near, she receives a visit from a mysterious mare who has come to seek out the answer to a simple curiosity.