Redcaps are said to murder travellers 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. Redcaps are very fast in spite of the heavy iron pikes they wield and the iron-shod boots they wear. Outrunning a redcap is supposedly impossible. They tend to inhabit ruins on the Mortal Realm, but build random architecture in Hell. They look like short elderly humans in the Mortal Realm, but they look like ordinary Fiends with a hat in Hell.