I was not going to read this book, but as I tend to do if there is a character that I keep thinking about I'll usually read another book eventually. With The Devil You Know the relationship which is not my thing is the Male/Male relationship. Thankfully, this time it was toned down and there was no club scenes of a S&M nature involved. This one may get a 4 star rating, but I'm still not sure if I'll read the rest of the books. I like the main female character and the main demon character intrigues me. I fear, however, there will be a threesome somewhere in the future and truly do not wish to go there.

So in the beginning of this book Morgan is still a demon possessed exorcist and her brother in still in a coma. Morgan will find out about her true past and that will reveal why Lugh can't fully possess her. Also, a piece of her past she's hidden for many years (even from herself) will come to light. All while she's still being pursued by those who wish to know what individual Lugh was transferred into not realizing he never left.