Jamie meets Geneva Dunsany after Lord John Grey arranges his parole in September 1756. Jamie comes to Helwater, an estate owned by Lord William Dunsany—Geneva's father and Grey's friend—to continue his sentence as Dunsany's groom. Seventeen-year-old Geneva becomes infatuated with Jamie.
In May 1757, when Lord Dunsany arranges a marriage between Geneva and Earl of Ellesmere who is fifty years her senior, Geneva comes to Jamie and demands that he take her virginity before her wedding. After he refuses, she blackmails him and he eventually succumbs.
As a result of their encounter, Geneva becomes pregnant and gives birth to William Ransom, Jamie's son, in January 1758. She dies the same day due to severe hemorrhaging. Jamie feels responsible for her death and prays by her coffin in the night preceding her funeral.