Anna dressed in blood is the first book of a horror duology, that put Cas on the scene. He's a ghosts, demons and spirits' hunter and he's currently running his deceased father's work. And so, Cas doesn't lead a serene life. It's not because of the ghosts but because his father died by the hand of a really strong ghost. Being unable to find it and kill it, avenging his father, is some kind of depression point for Cas. 
 Chasing and killing ghosts is the only thing that makes him feel good. That's why he hears about Anna dressed in blood, a terribile ghost that kills everyone who dares to step inside her house, and decide to confromt her. 
 Soon after his arrival in the new city, Cas forms a crew with an occultist nerd and some kind of the-most-popular-girl-in-the-school, plus a little group of morons that will pass on really soon. 
 And for some reason Anna doesn't kill after their first fight. 
 This bok was a cute read but nothing more. I had fun - not so much but it's bettere then nothing - I like Cas and all the references abount voodoo and wiccan, but it surely needs more work. And I have a lot of questions. After ending the book I was in this state: WTF. 
 So, first of my perplexities... I read this book in Italina, my mother language. In my country, Girl of nightmare, the sequel of the book, was never published and probably it will never will. That' why I will continue the duology in English. 
 But, anyway, the translation was strange. And I don't know if it's really a tranlation's fault or the author literally used that word a lot, without any form of variant,... but it's was strange to read "cacchio" every damn time. 
 Cacchio can be roughly translated as "fuck" or "shit". Actually it's a vulgar word for penis, but anyway it's a term that is rarely used in this time, plus it's a typical dialect of the region where I live. It's a really odd choice, especially by a translator and it's also kinda comic... and stupid. So it was terrible to read the word "cacchio" a lot. It was a nosensical choice that ruined the book. 
 I used that word at elementary school. It's so childish... 
 Also, a lot of wiccan and voodoo's references made little sens, since there was zero explenation how that things fused toghter. Yes, I can understand the "all the magic of the world is valid so let do a mix of them" but at the same time a lot of things were written like they're forgranted. 
 And what made the final boss really different from the other ghosts? 
 And the end. Why? What happened and why? WTF. And Anna, who soon become a coprotagonist, really didn't help me with that. And the romance also. 
 It's still a fun read but all the doubts and questions will kill me if the second book doesn't give me answers.