The iconic, all-fearing, Ring pursuers terrified both readers and audiences alike. Their black cloaks and screeches are the stuff of nightmares. We know them as Ringwraiths or Nazgul, but these otherworldly creatures are considered first and foremost as wraiths. When Tolkien created these beings in Lord of the Rings, he thought of the wraiths as spectral ghosts, loosely based on the wraiths in Scotland. Thus his wraiths act similar to their folklore counterparts.