I read the first two in this series (Fire Logic and Earth Logic) quite a while ago. I wish I'd read them closer together, before the details faded in my memory, but the first two were published by Tor, and this one by Small Beer Press, which is an excellent publisher, but as its name might indicate, a smaller one, so it took me a while to get a copy.
It's really too bad that Tor apparently dropped this series, because it's really a cut above the average. It has an interesting, well-realized world with interesting cultural elements and magical details, as well as engaging, rounded characters. The story kept my interest, while creating a thoughtful dialogue about the clashes of cultures and the personal attitudes that can lead to conflict or pacifism.