Many moons ago, there was a sword hidden somewhere in the Royal Mountains, where the first alicorns made their home. Now that alicorns have moved to more recognizable places in Equestria, such as Canterlot (Princess Celestia and Luna), Ponyville (Twilight Sparkle, Luster Dawn, Starlight Glimmer, and Sunset Shimmer), and The Crystal Empire (Princess Cadence and Flurry Heart), these mountains have become what one would call abandoned. That is, except for very few alicorns. And those were the alicorns that first resided there since the beginning.
You may be wondering. The first documentation of alicorns in the Royal Mountians as every Equestrian History book will tell you, are King Cosmos and Queen Galaxia, who reigned the lands before Equestira was even founded. It wasn't until years later after the Royal Sisters were born that Clover the Clever, Princess Platinum, Commander Hurricane, Private Pansy, Chancellor Puddinghead, and Smart Cookie came into the equation and named the land Equestria.
Once upon a time, ponies lived united amongst each other in the other lands except for the Royal Mountains, which was strictly the land of the ponies who possessed a unicorn horn, pegasus wings, and earth pony power. Thus known as alicorns to this day.
But at the time of this story, there was a king and queen who had a lovely daughter named Princess Sugarmoon. And that's where our story begins.