Alone in her tower, on her balcony, watching the night on her big 2nd K, Luna's overthinking her life. It's been two years since she came back to Equestria... Two difficult years.
Luna plays out the past millenia and two years in an hour. Such little time can reveal a lot. Especially if half of her life belongs to the cold Earth's satellite.

At this time, Equestria was divided into six kingdoms. Thunderstorm, although being a Pureblood, seems to belong to none of the royal families. If we exclude the ridiculous theory of her being the last Ghistal princess. Either way, Riverstone, the king of Durachia, soon develops feelings for her...
And,as I said before, she was sent there (and then) with a mission to save all the kingdoms from a pyromaniac. Although, a side-effect of time travel was complete memory loss...
A strange story, indeed.
Proofreaded by e-tec