I have read most of this author's books. I found her earlier novels (e.g. The Birdman, The Treatment), to be very good, but her more recent ones, such as Pig Island, to be poor. I was not too sure as to what to expect with this one.
The story revolves around a carjacker, who is deliberately stealing cars, that have children in them. DI Jack Caffery is investigating the crimes. DS Phobe 'Flea' Marley of the police underwater unit is also assisting in the search.
This is a very exciting thriller, as good as Mo's earlier works. The characters of Caffrey and 'Flea' Marley are becoming more developed, and I even found the 'Walking Man' parts of the story engaging. One of the better thrillers that I have read this year!