In S9, After King Sombra's horn was found in the Crystal Empire, the princesses have decided to resurrect him and reform him. The pony to reform him will be none other than... Fluttershy!
Reform a now powerless Sombra. For Fluttershy, it didn't sound impossible, but as time passes she learns the truth. To make this work, he won't be the only one forsaking a familiar road.
When Fluttershy goes into the Everfree to pick some berries for her date, she finds an unconscious pony near death. Normally, she would help them straight away but there is just one problem... It's King Sombra.
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.