3.5 stars 
 The story was well written but there were just some inconsistencies which bothered me. For example, Anna had told her adoptive mother that there would be parental supervision at a party, when she arrived at the party she discovered there was no supervision, and she then felt incredibly guilty about this - enough that she planned on leaving early because she was uncomfortable with the accidental lie. Two days later she promises her adoptive mother that she will not see the other half-demon kid, and then subsequently gets her best friend to driver her to his house and does not make a sound about any form of guilt. 
 Plus, her adoptive mother is extremely overprotective at first, she is extremely uncomfortable with Anna going out to see a band with her friends, she insists on speaking to the parents of the kid who is having a party (I could completely relate with how uncomfortable that was for Anna, my parents always did the same thing!) - but at the same time, Anna does not have a cell phone, so if she is ever in an emergency she would be stranded. Plus, right after finding out that Anna lied and went to go see Kaidan (even if Patti did understand Anna's need to find out more about her background), and knowing that Kaidan is a half-demon who devoted his life to leading humans down the wrong path, she is perfectly fine with Anna going with Kaidan to California - unsupervised. I understand there was a sense of emergency because Sister Ruth was dying, but at the same time, Patti had known what Anna was for Anna's whole life, shouldn't she have thought that the hundred year old woman who had vital information for her daughter's survival might not live to the age of 120 and it might be best to try and get this information a little bit sooner? And then the fact that she changes her mind the next day AFTER Anna has already left . . . 
 Plus, Patti's constant bawling was annoying, she is supposed to be the parent, even Bella Swan's mother wasn't this whiny. 
 Anna was good to the point of stupidity, for example, while on a road trip with the son of the demon of lust (who is already paying for transport and hotels, etc.) she decides, on a whim, to give all of her money to a homeless woman. Maybe I'm just too practical, but it seems like she pretty much just cut herself off from being able to leave him if anything goes wrong (especially as she does not seem to have a phone of her own). Either she is just that trusting or she just can't think beyond the moment she is in - either way it just made it harder for me to believe that she had resisted temptation for this long if she couldn't even think ahead a little bit. 
 The second half of the book was more interesting. I really liked Anna's interactions with her father, it was interesting to see what he had to do to prepare her for the next stage of her life. The New Year's party was the most memorable scene for me, it was interesting to actually see what 'working' entailed for the characters. I also loved Kope's little whistling trick, at that point I started to like him better than Kaidan. The scene in New York was horrifying, but it was meant to be and I think it did a great job of putting the action into perspective. Before that moment we were just told how dangerous these demons were, now we actually saw how sadistic they could be. 
 In terms of secondary characters, I like Anna's father and Kope, but the others fell a bit flat for me. I really liked Jay at first but then I feel as though he got lost towards the end of the book, I would like to see more of him later on though. I like Anna better at the end of the book, by then I felt as though she had become more interesting, she was no longer the perfect innocent creature that she had been in the beginning. I am really excited to see what happens with her and Kaidan next.