In close analogy to the Lurting account (see: 1711), Daniel DeFoe's novel Captain Singleton emphasizes the spiritual, life-changing power of "Quaker William's" love for the murderous pirate, Captain Singleton. The sailor-and-Quaker lovers retire to London, living together in profound disguise, with a marriage to William's sister as a cover (or, to use a term popular during the twentieth century, a "beard"). []