The Boleyn family's fortunes seem to be secured when Mary becomes pregnant. When she nearly suffers a miscarriage, she is confined to bed for the remainder of her pregnancy, and Norfolk recalls Anne to England to keep Henry's attention from wandering to another rival, particularly Jane Seymour. Anne successfully embarks on a campaign to seduce Henry, revealing herself to be more sophisticated and accomplished than she was prior to her exile. By withholding her sexual favors, she ensures the king's continued interest, finally making him promise never to bed his wife or speak to her sister in exchange for her giving him hope of eventually possessing her. Anne exacts this promise just after Mary gives birth to the much-anticipated son, making Mary's triumph hollow.