Kelpie is a water horse spirit of Scottish myth, they are capable of shape-shifting. They inhabit the Lochs and pools of Scotland. It is described to look like a horse, but can take a human form. Said to delight in drowning its victims. In certain stories, it loves the human liver. Douglas Harper, historian and founder of the Online Etymology Dictionary, defines kelpie as "the Lowland name of a demon in the shape of a horse". It is the most common water spirit in Scottish folklore, though many o