Harriet Vane is a fictional character created by author Dorothy L. Sayers. She is a mystery writer and the love interest of the amateur detective Lord Peter Wimsey. Harriet first appears in the novel "Strong Poison," where she is accused of murdering her former lover. Throughout the series, Harriet evolves from a strong, independent woman to a partner for Wimsey. Her character explores themes of feminism and the challenges faced by women in the early 20th century. Harriet's intelligence and creativity make her a compelling figure in the Lord Peter Wimsey mysteries.