This guide provides an in-depth look into the mysterious creature known as the Nuckelavee of the Sea. It covers the creature's origins, its physical characteristics, and its behavior. It also provides tips on how to identify the Nuckel
From Wikipedia
The nuckelavee or nuckalavee is a horse-like demon from Orcadian folklore that combines equine and human elements. If one was looking casually, or under the cover of shadow in the night, it was thought to have the silhouette of a normal horseman. However, upon further inspection, it resembles a fleshless horse which sports one eye and fins on its legs, with a fleshless human head, torso, and arms longer than normal sprouting out the horse's back.