I really wanted to like this book--it's about a subject I find quite fascinating. And indeed, the book starts off well. However, in the middle, it really is quite a drag to read. Perhaps I'm not the target audience to hear about the intricate court politics of Revolutionary and Napoleonic-era France, but my God that was a slog. We are introduced to snippets of people we have never heard of, who never show up again, and expected to keep many players straight. I frequently flipped back and forth to try to keep track of various dramatis personae. The book does pick back up in WW2 and cold war espionage, and I really almost wish there were more space devoted to these more recent spying episodes. It then falls on its face once again in the epilogue, talking about Israeli/Mossad secret actions.
It's not a 2-star, but that's only because I forced myself to finish it.