My wife and I watch crime drama. There is always a scene in any show where the cops ask someone something along the lines of "Is there any one who would want to kill...?" The answer is always "No. He/she was so sweet and wonderful and everyone loves him/her." There is a brief pause, sometimes the cops ask a follow-up or get ready to leave and the interviewee says "Well, there was this...." and the plot moves forward. 
 There has to be a way to move the plot forward and in these crime dramas which are limited in time this is how they do it. Books can be a little more subtle in how this is accomplished. However, in the Hellequin series Mr. McHugh bashes these plot movements in your face. I struggle to find if the book is trying to be funny or taking itself seriously. This is one annoyance in a line of several that make this book probably the last I will read of this series. 
 The other is that Nate (a 1600 year old sorcerer, who lost his memory (cliched beginning of the first book)) seems to be getting more and more powerful as his "memories" continue to seep back into his head. There was a comment from a character "You are a God." Nate replies, "I am no God." However, if McHugh keeps giving Nate these superpowers with no obvious side effect (other than struggling with the Nightmare inside him) he will be a God in no time. 
 There are several good urban fantasy series out there but this one falls short of that mark.