I am not a huge fan of motor racing, but despite this I enjoyed the first chapters of the book which is mostly about the early lives and racing careers of the saboteurs. The author really brings the people to life and makes the reader care about them. Once he starts writing about their SOE activities the book comes to life. He must have done an enormous amount of research, because, despite reading many, many books on the SOE, I found a lot of new information. Excellently researched.