A story of three Alicorn siblings living in an exotic desert kingdom long before Celestia and Luna were born, yet they have more influence on the lives of the Two Sisters than they realize...
After years among the three pony tribes the Two Sisters fight their first great foe by themselves: King Sombra, the tyrant King of the Crystal Empire. Nothing goes as planned, everything, and everypony are not as they seem.
Rarity and Rainbow Dash are lost on a mountain with a never ending blizzard and try to save a pair of lovers trapped in ice. To do that, they need to slay a monster.
While in Trotsylvania, a mare by the name of "Fluttershy" meets a gentlecolt named "Dr. Van Helstallion" and must be protected from a vampiric demon who is, not only, persuing her, but killing other young mares in the village.