The Fachen (also known as Fachan or Fachin or Peg Leg Jack ) is a creature with only half a body in Scottish and Scots-Irish folklore. Supposedly its appearance, which includes a mane of black feathers tufted at the top and a very wide mouth, is so frightening that it induces heart attacks. It can destroy an orchard with a chain in its strong, singular, withered arm, in a single night. A story in John Francis Campbell's Popular Tales of the West Highlands features a Fachen named Nesnas Mhiccallain being defeated in a race by the story's hero, Murachadh Mac Brian, who became king of Ireland. In Popular Tales of the West Highlands the Fachen is described as follows: