Fleming's novels often revolved around themes of romance, mystery, and intrigue. "A Terrible Secret" likely follows a narrative filled with dramatic events, secrets, and the intertwining lives of its characters. The novel might feature elements of suspense and drama, focusing on the revelation and consequences of a significant secret.During her time, May Agnes Fleming was a prolific writer, and her novels were well-received by readers who enjoyed romantic melodramas with intriguing plot twists and emotional tension.As of my last knowledge update in January 2022, "A Terrible Secret: A Novel" remains part of May Agnes Fleming's literary contributions to 19th-century popular fiction, showcasing her storytelling skills and ability to captivate readers with engaging narratives filled with mystery and emotion.