In All Roads Lead to Calvary, the protagonist, Joan, navigates the challenges of faith, personal growth, and ambition as she strives to make her mark as a journalist. Her journey reflects a deep inner conflict between her professional aspirations and the moral questions that arise from her exploration of religion and societal values. As Joan delves into the history of London's churches, she is confronted with stories of faith and the legacies of notable figures, which challenge her own beliefs. The novel examines how Joan's career as a journalist intertwines with her quest for truth, as she seeks to understand the complexities of human existence through the lens of both historical events and modern dilemmas. Her discussions with Mary Stopperton and reflections on the sermons she attends highlight the tension between tradition and the progressive ideals Joan holds as she navigates the moral uncertainties of her time. Ultimately, the story explores how Joan's profession shapes her worldview and how her role as a journalist forces her to confront the balance between personal integrity and societal expectations.