30 years. 30 years since Sunset has been gone from Equestria. A simple error within the mirror portal prevented Sunset from going back and forth to Equestria at ease, now with the mirror portal fixed, how much has changed within Equestria?
Time dilation and technological progress does funny things towards a certain fiery maned unicorn.
Story will be set in an Equestria with 1950s-1960s technology. And inspired by the wonderful art drawn by Light262.