In the last year of her life , Austen revised Northanger Abbey ( 1817 ) and wrote Persuasion ( 1817 ) . She also began another novel , which was later titled Sanditon . In the last year of her life , Austen revised Northanger Abbey ( 1817 ) , wrote Persuasion ( 1817 ) , and began another novel , eventually titled Sanditon , which was left unfinished at her death .