I really liked this one. I think it might be my favorite so far. There was a lot more action than Demon in My View, and I think more than In the Forest of the Night too (it's been forever since I read that one, so I don't really know).
I found Sarah to be annoying with all her "Vampires are evil monsters, witches are awesome!" stuff. Though the witches were pretty awesome. I'm not sure if I said this in my last Den of Shadows review, but I liked how the witches weren't just people with powers.
Nikolas was an interesting villain, because he wasn't totally evil. I love bad guys like that! *coughRedXcough* But that thing about carving his name into his victims was really creepy.
I can't really think of anything else to say except, the characters were good (I hate the Vidas!), the story was really interesting, and the writing was great.
I give this book four Fists of Rock.