The story inspired by game Skyrim.
The king Sombra was overthrown, however it doesn't mean that he doesn't matter anymore. Although crystal ponies life back to normal, but in the castle princess Cadence and Shining Armor a new danger lurks, which doesn't give them chance to sleep at night. Desperate princess discovers that the ghost of King Sombra haunting the castle chambers unable to rest in peace. Cadence decided to ask her friend Twilight Sparkle for help.
Fluttercord/Discoshy