I'm dying. Soon I will leave everything and everypony behind. For now all I can do is say goodbye.

After Twilight Ascended to Alicornhood it seemed like the future would be bright for her, However When Discord attacks the City of Canterlot during Twilight's Coronation, her world is turned upside down.

Who was King Sombra, and why does the year of his rise to power and subsequent defeat coincide with Princess Luna's fall from grace?