"Karl May's German-language novel of the American West has been a perennial favorite in Europe since it first appeared in 1892. The daring adventures of the German-born frontiersman "Old Shatterhand" and his Apache companion "Winnetou" in the western plains and mountains have been reprinted innumerable times, made into films and plays, and have inspired musical compositions. Today in Germany, Old West enthusiasts by the tens of thousands attend an outdoor "Karl May" festival each summer. Yet, despite May's immense popularity in Europe, this prolific author of adventure fiction is virtually...