The Each Uisge (Scots Gaelic translated literally as Water Horse), a supernatural water spirit found in the Highlands of Scotland, is the most dangerous water-dwelling creature in Britain. Often mistaken as the Kelpie (which inhabits streams and rivers), the Each Uisge lives in the sea, sea lochs, and fresh water lochs.
The Water Horse is a beguiling shape-shifter, disguising itself as a fine horse or pony. If a man mounts it, the creature’s skin becomes adhesive and it immediately plunges to the deepest part of the loch with its victim. After the victim drowns, the Water Horse tears the victim apart and devours the entire body except for the liver, which floats to the surface.