One of the great pleasures of the book is the way Mike Carey uses his premise about the supernatural invading the world and becoming a, nearly normal, part of reality and everyday life. This accommodation lets him drive the story forward as a very noir thriller with a supernatural cast without having to break the genre conventions to do so. Felix is a great leading man, he is trying to do his best and do the right thing in a world where that has lost a great deal of meaning. He is not a superhero in any sense, he does have a strong talent which causes him as much trouble as it solves for others. He is willing and able to act, make mistakes and just ultimately do what has to be done. With a supporting cast featuring a demon who lives for sex and blood and a zombie property developer, the standard police officer who is a wary ally of Felix has to work hard not be simply be a cliche. Mike Carey gives him a genuine spark of life and the relationship between the two rings true.
The opening incident of the book appears to be a freewheeling sub plot that is woven into the main plot with a cunning ferocity that is matched only by the bitter story that lies behind the activities on the Sailsbury and the murder victim. The supernatural elements are not window dressing on a excellent noir thriller, they are woven into the fabric of the story so that they give it extra bite and severity.
This is a great read, Mike Carey is a very skillful writer who has created a gripping blend of ideas that could work against each other, in fact they combine seamlessly to add weight and texture to a cold and griping story.