The book "Sins of the Mountain Cities: A Memoir of Mary Ann with Short Essays on Sodomy and Tribadism" was first published in 1881 and is a unique work of the era of English literature. The author or authors, under the pseudonym Saul, Jack, created this book as a frank novel about sexuality, morality and society. The basis of "Sins of the Mountain Cities" is the story of Mary Ann, who tells about her life in Victorian London, where the main themes are sodomy and tribadism. The book not only reveals the intimate details of the generally accepted topic, but also subjects the public view of such concepts to deep philosophical analysis. In addition, the book provides short essays that explore the history, philosophy, and ethics of sexuality, including the authenticity of sexual relationships, the morality of such relationships, and their impact on society. "Sins of the Mountain Cities: Mary Ann's Memoirs with Short Essays on Sodomy and Tribadism" remains one of the most provocative and important works that help to understand the complex aspects of human sexuality and their reflection in 19th century society.