This short story actually serves as a prequel to the above story, and everything else MLP. However, I do recommend reading the above story first before starting this one.
Everypony knows the tale of Hearth's Warming Eve, but not many know what happened before then, back when the first ponies came to exist. Ten thousand years before Celestia and Luna's rule, the then-unnamed land was ruled over by beings known as Sleipnir, eight-legged horse-like beings that kept order in the land. They constantly fought with the Draconequus, who upset the order with a mix of chaos. While the Draconequus take reality and make the impossible, the Sleipnir take the impossible and make it reality.
For many years, balance was kept between the two races. However, everything changed once the Six Sleipnir kings found an ultimate weapon to keep order: six keys to amplify the creation power of the Sleipnir. This threw the world into an unbalance as the Sleipnir soon strayed from their ideals of order in a lust for true power.
Follow Roddel, a young Sleipnir guard, as he witnesses the birth of a new era. Roddel's loyalty to the High Sleipnir King is unmatched, yet he will have to make very important decisions that put loyalty against safety, life against death, and will pave the way to the Equestria we know today.
Destruction. Tragedy. The End. How can one live in this new world?
Before Celestia and Luna's rule, before Discord's rule, before the founding of Equestria, something else ruled over the land.
An ancient race has returned to Equestria. Will the ponies ever be able to live in harmony again?