The first volume of the Dresden Files had vampires, but it wasn't about vampires, even though they played an important part. The problem there was wizardry, and that was a nice change from what you might expect.
The second volume has werewolves, and it is definitely about them. But there's still a twist to it, and that's the ground rules. Bob, the air spirit Dresden keeps in his cellar, explains about different types of werewolves from folklore and how people become them. Hint: getting bitten by a werewolf won't turn you into one -- otherwise, the world would be overrun with werewolves. (My note: consider that any virus that could spread so easily would either become a mass epidemic or kill everyone, and itself, pretty quickly.)
All the different types are encountered here, including the mysterious Tera West, who Dresden isn't too sure what she is. It's certain that she isn't as human as the others because his soul gaze didn't work on her. She is the fiance of Harley MacFinn, who is a loup-garou, the most powerful werewolf type Bob mentions, and also the least controllable. He has a circle of protection to contain him in his home, but it has been broken. West needs Dresden to contain MacFinn or innocent people will die under the full moon -- or is it that more innocent people will die?
Dresden doesn't have to worry about the White Council in this book as much as he does a greater adversary: Lt. Murphy. She hasn't been pleased with him for keeping secrets from her during investigations. Their working relationship is quite strained as Murphy wants an answer to the investigation while Dresden wants to protect her from the worst of this business. She brings him in on an investigation where bodies looked liked they've been ripped about by wolves. The last was a month ago, during a full month. The latest, another full moon. Doesn't take much to realize a consultant should be brought in. The problem with the latest crime scene is that it's out of Murphy's jurisdiction and the Feds have moved in. She needs this win for the Special Investigations Unit.
And, naturally, Johnny Marcone ends up being involved in all of this.
The action keeps moving, and there's a good cast of characters. Most of them seem to want Harry dead, but some need him alive -- at least for now. This is not a sophomore slump in any way. And there are plot hooks for the future. It should be interesting to see where it goes.
I'm coming back to this series at a later time.