To any other pony today was just any other day but Princess Luna, sole ruler of Equestria for a thousand years new otherwise. Today was the anniversary of the day she lost her family, and every year on this day she reads the only thing she has to remember them by, a letter. This letter was found at the site of the incident. So, just like every other year she opens the letter and reads….After readings this letter she receives some news that will change Equestria foorever