I expected so much more from this. It's a great ghost story, and for the first two thirds of the book, that holds true. Then all of a sudden the story shifts its focus and it really threw me off.

Spoiler

Going from finding out Anna's history to her all of a sudden being good, Cas and Anna falling in love, and another ghost enters the story as the real Big Bad was like having the rug yanked out from under me.