Anyone who has sought counsel from Princess Celestia has met Raven, her most faithful aide. She has been a veritable second shadow to the princess for as long as the castle staff can remember... longer than they can remember, in fact. Much longer.
Life as an anonymous artist isn't glamorous, but it's the most secretive an imperfect clone can have while trying to keep a low profile. Then again, "most" is a relative term.
Twilight Sparkle, a pony turned dragon, might be Princess Celestia's personal student, but that doesn't exclude her from the trials and tribulations that come with growing up.
As an orca pony swims one night among the fiery monuments of a global conflict, she finds a sailor freezing to death in the arctic cold. She has only one question for him.
I have heard ponies say that living so long would be a curse. That it is a burden. That it can break a pony's mind. There is some truth to that, but it's not the whole truth.
Luna reread the graffiti, but it came no closer to making sense. “Princest Is Wincest,” it said. It was confusing enough to be offensive; did nopony spell correctly anymore? Perhaps Tia would be able to explain it.
Extreme long-range teleportation is fraught with frequently-unexpected complications. Twilight and Celestia find themselves caught within one such complication for an entire week.