"The Three Cities Trilogy: Rome Complete" is a novel by Émile Zola, which is part of a trilogy that includes the novels Lourdes and Paris. The second novel in the trilogy, "Rome," follows the story of Abbé Pierre Froment, a Catholic priest who travels to Rome to study the rejuvenation of Christianity. In Rome, Abbé Froment became acquainted with various influential figures in the Catholic Church, including Cardinals Boccanera and Sanguinetti, as well as several other priests and officials. He also becomes involved with the Boccanera family, who are old aristocrats with a rich history in Rome. Throughout the novel, Abbé Froment grapples with his faith and beliefs, and he becomes increasingly critical of the corruption and hypocrisy he sees in the Catholic Church. Despite his doubts, however, he remains committed to his work and to helping others. The novel is a sweeping portrait of Rome, its history, culture, and people, and it provides a deep and nuanced exploration of the themes of faith, power, and corruption.