I really can't say how much I love this book and I don't really want to give anything about it away either. I love this whole series because it's dark and gritty, but with great humor and there is something very real and believable about Kate. And that continues through the other characters too and how she interacts with them. Her relationship with the Beast Lord, Curran for example. Not smooth sailing, not the usual kind of relationship you find in urban fantasy books. It can be really volitile and they have seriously tried to kill each other multipul times. Also, it isn't something where they fell for each other at first sight. It's developed slowly through the first three books and it's much better for it.
Magic Strikes completely lives up to the expectations from the previous two books. It reveals more of Kate's hidden past and sees her come closer and closer to showing everyone who she is in order to keep her friends alive. We also learn a little more about certain members of the pack, and just how much they care for each other. The idea of the Midnight Games is done well, with enough on it and enough shown without it being constant fight, fight, fight. And I think this book has some of the funniest lines I've read, several laugh-out-loud moments (not least of which is the final page, making it a great ending!).
Easily the best book I've read in the past few months and some of the very best newer Urban Fantasy around.