A Red Cap or Redcap, also known as a powrie or dunter, is a type of imaginary malevolent murderous dwarf, goblin, elf or fairy found in Border Folklore. They are said to inhabit ruined castles found along the border between England and Scotland. Redcaps murder travelers who stray into their homes and dye their hats with their victims' blood (from which they get their name). Redcaps must kill regularly, for if the blood staining their hats dries out, they die. Outrunning a redcap is supposedly impossible; the only way to escape one is to quote a passage from the Bible. They lose a tooth on hearing it, which they leave behind.
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