By Patrick Ness.
Awesome book. I managed to get a copy before it came out (it was a producer copy; they wanted me to review it for them). It was utterly amazing. I haven't purchased the actual published version, so I'm not sure if there are any slight differences, but it was still stunning.
It's meant to be part of a series, too, but I don't think that the second book has come out yet... Anyway. Has anyone else read it (doubt it) and if so, what did they think?