This novel remind me a lot of Angels' Blood. First, there is the name of the hero, Raphael in both case. Then the circumstance under which they met the heroines and the kind of relationship they have with them. In this novel, though, I find that Raphael relationship with his subordinate is better done, you know that he is their king and that they fear him. However I appreciate less the writing itself, I think it is less fluid. I also like better the characters of Angels' blood. A thing that particularly annoyed me is Cynthia's relationship with her sister Holly. The later is staying at Cynthia's house under an obvious excuse and yet she insults daily Cynthia, she criticizes her way of life and all her actions. For me, it's totally stupid and rude as she is staying at Cynthia's home, the less she could do is be polite to her and make herself useful around the house. But the worst is that Cynthia does nothing and says absolutely nothing. Sister or not, I would have threw her outside a long time ago. And when Holly endanger Cynthia's job, her life and the privacy of her clients, Cynthia still says and do nothing apart from taking back the keys to her house. I find it hard to respect her after that. 
 Apart from that, the plot was good. Cynthia is a PI which is not a big originality in this genre, but we actually saw her do some credible PI job which was an agreeable surprise. 
 All in all, this series was a good surprise and I will read the next book to see how things will evolve between the characters.