Title: The Dragon Empress
Description: I have not read it but based in my  reading of her  first novel,"In a dark wood"  she  is very learned about Chinese Art and Art History.Also about the Jesuits connection to China.
So this book must linked  to her Chinese Art knowledge.I assume about the Empress of China.
Subjects: art, China, Jesuits, Empresses, Biography, history, China, social life and customs, Kings and rulers
Places: China
People: Ci xi Empress Dowager of China (1835-1908), Ci xi Empress, Consort of Xianfeng, Emperor of China (1835-1908), Cixi Empress dowager of China (1835-1908)
Time periods: 19th century I think