LOVED IT, absolutely tore through it, it's a gripping NOW story, that gives incredible insight, detail, and colour into each area it touches, including jihadist fighters, a 'real' spy, kidnapping, captivity, marine biology, biomathematics, & deep sea trenches. It yanks you along at a great pace, stylistically extremely refreshing, interspersed with super interesting facts and segues, the writer flips from section to section but in a totally fluid way - Eddie Van Halen springs to mind, you will see what I mean by that comment when you read it. A truly original piece of work, an absolute pleasure. I finished the book a richer person. BUY IT!!