I loved this book and plan on reading the rest of the series. It is a humorous and action filled urban fantasy, well I'm not even sure you can call it that it may need its own category. Hearne does an excellent job of telling the Iron Druid's tale and somehow manages to blend multiple belief systems into a coherent story. You get everything from modern humor to old Druid cursing fits, Jesus to Brighid and lets not forget the Wolfhounds!
In this installment Atticus (a.k.a. the Iron Druid) must help his archdruid learn about modern society while trying to decipher whom is trying to kill himself and his lady. Meanwhile said fair maiden (a druid that he himself trained) is battling an ancient evil that has taken over her father's body and is spreading a fatal plague. All of his characters are engaging and this is a novel that you could easily read in one sitting, not because its so simple but because its so damn good. Oh and did I mention that Loki makes an appearance?
Definitely a 5 star rating for this one.