To be honest, I was slightly disappointed with this, and I feel really bad for saying that because I really love this series and Gena Showalter... But it just felt incredibly anticlimactic to me. William has been one of the most built up and mysterious characters this whole series and I was expecting something epic from him, and in the end it was sort of like...really, that's it? We still don't even really know what he is. Like I'm not sure what exactly I was expecting from his back story, but I was definitely expecting more. I also found the final battle scene super blah. Both characters were so built up and it sort of left me feeling like that was it? I probably would give this book 3.5 stars. I still love William and Sunny is pretty cool. I just expected more. That's the issues with expectations and having a lot of hype, if it doesn't live up to it, it leaves you feeling disappointed even though it's definitely a solid book and enjoyable.