A very enjoyable book, particularly since I really enjoyed the Secret History of the Mongol Queens by Jack Weatherford. The author very impressively wove history into the narrative.
Genghis Khan's queen, his daughter, a captive given to one daughter-in-law, and another daughter-in-law take it turns to tell his, his children's and his grandchildren's story. I don't know enough to judge the picture of Mongol life and history but the characters weren't obvious 21st century transplants.
I did get a bit weepy towards the end