This book is about 310 pages long, but unfortunately, it took about 80 pages to really get into it for me. Once there though, I rocketed through the rest of the story, and it was a genuinely interesting read. I read a lot of military history, and this tale of allied airmen escaping Europe during WW2 and the people who helped them is definitely a worthwhile read. A lot of research was done for the book says the author, but there is only one small map at the beginning to show in general terms where the aircrew and their rescuers travelled.
I would have thought that a story so close to the authors heart would have at least some photos of the main participants - during the war and afterwards maybe, as well as photos of the streets of Paris where safehouses existed or even of the mountains that the escapees had to cross to make it to safety.
I think that just by making a few notes it would be relatively easy to come up with a DIY tour of the Comet Line places of interest in Paris. Indeed, this is what the "Battlefield Europe" series of books (Published by Pen&Sword) do, and it's a great and easy to follow idea.
As mentioned by at least one other reviewer, the book could have used some photos to give the reader a clearer picture of people and events and this would have certainly added a star for me. It is however, an important book, about some little known, but certainly brave people.