Some books are initially deceptive, and deliberately don’t give you much in the way of clues to their contents from their title, cover or blurb on the back. Others are completely up front about what you will find within their pages. With a title like Headhunter, and a cover showing a severed head on a spike, this one falls firmly into the second category, and it’s not too hard to work out that this book is going to be a little bit gruesome.