Gorgeous world-building, all sorts of good stuff with the sci-fi soviet noir setting, but — and this is a huge but — there's simply no ending to the book. None. The book ends like a chapter ends. No closure whatsoever. Obviously sequel is in works, and hopefully arrives soon, because this book doesn't stand alone. I recommend waiting until a sequel is out before reading this one... I was very disappointed in the ending, but the storyso far is promising.