A WHITE SHEETED THUG in a pointed hat, with pistol and shotguns at the ready. Was he a symbol of privilege and power? Of class and racial control? If so, why was he surrounded by a bug, a lion, and a lady with a cup of hot chocolate? The year was 1878. In St. Louis, Missouri, tens of thousands of spectators cheered the downtown arrival of a mysterious "Sublime Hime-uk-amuk of the Veiled Prophets."...