" While I think the main story of Double Cross is pretty fascinating and impressive, I didn't love the book. It's a true story of how the British intelligence controlled every German agent in Britain during WWII and used the network to distract the Germans away from the planned D-Day invasions. The problem is there are A LOT of "characters" to keep track of (that are referred to at various times by their real names, their German code names, and/or their British code names), and it gets confusing. There also wasn't much real "action," which is not surprising I guess in a book about real life spies, but it made the story drag a bit. "
— Jenny, 2/8/2014