As with most Mercy Thompson novels, a bit of fluffy brain-candy. Unlike Silence Fallen, the previous entry in the series, Storm Cursed avoids the pitfall of appropriating yet another non-white cultural tradition. (If you ignore the cover art.)
The plot and action override everything else here. Unfortunately, this leaves almost no room for character development. The danger level is ramped up too high, and many of Mercy's most interesting compatriots are left out because they are too vulnerable. Those powerful enough to help out do... but without anything to say or any time to explain themselves if they do have something to say.
Even with those limitations, some old questions are given glimmerings of answers (or at least new threads to be pulled).
This series continues to coast at a comfortable level, and is a reliable popcorn read.