Jacob Frank is the second and last major exponent of apostate messianism, the concept that lead to the Sabbatain heresy. His picaresque life is recounted by Alexandr Kraushar. The editor's 'A Note for the General Reader' and his annotations to Kraushar's text explore the sources, and the reasons for the disappearance, of the Sabbatain heresy. These observations are reflected against aspects of early 20th Century European history. Also explored are affinities to the tenets of Sabbatian theology found in lines of T.S.Eliot's Four Quartets and in the role of the Old Bolsheviks in Stalin's Purge Trials.