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The Ly Erg is a fairy from Scottish folklore, particularly associated with the area in and around the Glenmore Forest, part of the present-day Cairngorms National Park. It is dressed as a soldier, distinguishable from a human soldier only by its red right hand, said to be stained with the blood of its victims.[1] While out walking it will stop near water, and by raising its right hand challenge passersby to fight. But anyone who engages in combat with the Ly Erg will be dead within a fortnight, win or lose.[2]

Writing in 1847, the antiquarian Joseph Robertson tells of three brothers who fought the Ly Erg, each of whom died immediately after their encounter.[2][3]

Man with bloody hand



Bane, Theresa. Encyclopedia of Fairies in World Folklore and Mythology. McFarland & Co, 2013.
Robertson, Joseph. Illustrations of the Topography and Antiquities of the Shires of Aberdeen and Banff. Spalding Club, 1847.