The second book in this ongoing series is a modern day fairy tale but (somehow) based in reality.
We have real New York infested with Fairies (and some pretty unpleasant monsters) and various Human, non-Human, part-Human characters (including a number of devils and the Arch-Angel Michael [who appears as a woman] [obviously]), and an ongoing battle between the two (or three) worlds - Hell appears to be yet another part of these parallel universes.
Elizabeth Bear's prose is utterly beautiful, and although I occasionally (and literally) lose the plot, the story seems to gel.
A human who was used to attack the Fey realm was conned into sacrificing his brother [this from the previous book] is now trying to get his life back - after being run through the chest by a unicorn, who also happens to be the most gorgeous woman (try and keep up at the back there), and is assisted by Kit Marlowe (yes, THE Christopher Marlowe of Shakespearean times) who has been the "guest" of Lucifer (who seems a nice chap). Other helpful characters include Merlin the Magician (another woman - yes, a pattern is appearing) and Morgan Le Fey (still a woman).
I loved the first book in this series (Blood and Iron) and this second one is just as wonderful. Real Magic oozes from the pages, there are delightful surprises at every corner - and somehow everything seems to make sense.
Buy this, suspend your disbelief in the Faerie realm - and enjoy!