Natural Causes is another book from my long suffering TBR. A good blend of police procedural and the supernatural (in the form of demons). DI McLean is recently promoted and not the most liked of all DIs due to his inability to play nicely with others which may stem from his traumatic childhood or perhaps from the fact that he can sense demons around him. There are plenty of murders to investigate here and a lot going on in the book in general. An engaging read with some interesting characters, probably good for fans of TV show Lucifer.