Wow! This one will have you sleeping with the lights on for a while! You know those ghost-hunter shows where they see a little cloud of light or hear a small noise and that's their ghost? Well, that is NOT Anna! Anna is a dangerous, bloody, killing-machine that charges in like a hurricane! Not the kind of ghost you wanna find in your attic. She is bold & terrifying and that's makes her so entrancing. Then you have Cas, he is definitely a long-lost Winchester brother. He's used to moving around and tracking different ghost, and is very capable of taking them out once he finds them. Not to mention he has great wit that will keep you laughing through the whole book. 
 This was definitely different from any other book I've read, mostly because of Anna - there is no other character like her! Even though I was a little scared (meaning: terrified of every noise in the house & about to pee my pants) in the beginning, I was fully sucked into this book and loved every minute of it! Hope to see more from this author in the future!