Even the pony who says their prayers at night can become a timberwolf when the wolfsbane blooms and the moon shines bright. It is much more than some old rhyme found in a book of old mare's tales, it's a warning about an ancient curse.

After an old school friend of Big Mac arrives back in Ponyville after ten years, there are sightings of a timberwolf in town. Can the residents of Ponyville run off or destroy the dangerous magical beast before it kills anypony?

Reader warning: body horror, transformation into a monster, blood, madness, bodies ripped apart and references to an old 1941 horror movie.