These mischievous Goblins from the north of England can change their
shape, and though usually equine, also take the form of a cow with a
white flag around its neck, an ass, or if it suits their mood, a
naked man flapping a white sheet, a chanting girl, or a giant, white
singing cat. They live in rivers and lakes, and the aim of their
transmutations is to lure passers by into the water for amusement.