Not ten years.
Not one hundred years.
Not one thousand years.
One million years.
An amount of time so ridiculously long, Celestia knew she would never see her beloved sister again. In fact, would Equestria even exist by that time? Would anything of the world she once knew remain? Why, oh why, did those Elements have such a terrible price?
Moping around in the library became Celestia's way to cope. Never really reading, simply grazing.
But one day, she stumbles upon a book that could change Luna's fate.
All it requires is sending Luna vivid stories, all comprised of cherished memories from their foalhood.
The catch? Luna must read them and write back, or the spell will not work. How would Celestia be able to convince whoever her sister had become to even open the letters?