The American Agent : Maisie Dobbs (Book 15) : 15

Jacqueline Winspear is a British-American author known for her Maisie Dobbs series, which follows the adventures of a female detective in post-World War I England. Winspear's writing style is characterized by meticulous research, rich historical detail, and a focus on character development. She has made significant contributions to the historical mystery genre by blending elements of detective fiction with a deep exploration of the human experience in times of war and social change. Her most famous work is the first book in the Maisie Dobbs series, simply titled "Maisie Dobbs," which introduced readers to the intrepid detective and set the stage for a successful and enduring series.