Mansfield Park | Austen | Wordsworth Classic | Book Adultery is not a typical Jane Austen theme, but when it disturbs the relatively peaceful household at Mansfield Park, it has quite unexpected results. The heroine, Fanny Price, has to struggle to cope with the results, re-examining her feelings while enduring the amorality, old-fashioned indifference and priggish disapproval of those around her.