An Ursa is on the loose! It's up to Vinyl Scratch, the Element of Magic, Octavia Philharmonica, the Element of Honesty, and the other Ponyville musicians to save the day!
Monster finds problems fitting in and getting used to her new world in Ponyville. To help adjust, she reaches out to Princess Luna who has many of the same problems now that she is recovering from being Nightmare Moon.
Twenty years before the Elements of harmony, before Nightmare Moon's Return, Celestia started a whole new slew of problems and headaches for herself and the ones around her. Thankfully Cadence doesn't mind foalsitting.
They say memories and experiences build a being's character, rather than a set fate. What would happen to the little filly know as Twilight if she were to be ripped out of society and thrust into Draconia, with nothing save her magic and an egg?
Twilight changes Star Swirl's time spell to travel back to the past once more. She ends up in the Pre-Equestrian era and unwittingly saves two fillies in the process. Little did she know what teaching them magic can do for the fate of Equestria.
Congratulations, Twilight. With the Princesses on vacation, you're in charge of Equestria. Perhaps it's a bit early to congratulate you. After all, whether it's a jealous nobility or an unhappy military, your reign will be anything but
Trixie appears once more in Ponyville, babbling about how she is supposed to be the Element of Magic and how Celestia is the evil Tyrant Sun. Has she gone insane? Or is something larger happening?