Decent mystery, lots of intriguing things going on with the heroine's relationship with her new husband, independence, pregnancy, societal expectations, and desire (or lack thereof) for children, and some of the Turkish women were interesting. However. There's not enough chops here to tackle "rescuing a Christian woman from a Muslim harem" without running into all sorts of weirdness and uncomfortableness. If we were supposed to look askance at the heroine's motives and assumptions in staging the sort-of-ish rescue (which we've been asked to do in other situations, to varying degrees of effectiveness), we were not asked hard enough or clearly enough. Better than some, still way not good enough.
