A Fool's Errand: A Novel of the South During Reconstruction

There had been rumors in the air, for some months, of a strangely mysterious organization, said to be spreading over the Southern States, which added to the usual intangibility of the secret society an element of the grotesque superstition unmatched in the history of any other.... Here and there throughout the South, by a sort of sporadic instinct, bands of ghostly horsemen, in quaint and horrible guise, appeared, and admonished the lazy and trifling of the African race... -from "Chapter XX...