Twilight is marching... It's only two thousand nine hundred eighty-six steps...

Flankfurt. A small city in the far north of the Equestria. Beautiful landscapes, marvelous coastline, almost four hundred years the of history; the town is a true gem of the Northern Reaches, attracting tourists from all across the Kingdom. A city with a long and glorious history, a city with a...

Leprosy epidemic.

Leprosy is a disease, one which modern Equestrian Medicine can do nothing about. Dozens of the Flankfurt’s citizens have fallen to the painful and terrible illness. When Twilight Sparkle hears of this disease and the havoc it is wreaking on the town, she immediately sets off on a journey to prevent the spread of Leprosy before it can destroy Equestria. However, as Twilight fights against the plague, she uncovers something much more sinister lurking in the snow-filled streets of Flankfurt.

Based on Polish Book : "2586 Steps" by Andrzej Pilipiuk. No knowledge of source material is necessary.
Co-written with Spike the Scribe