The plot is certainly complex, the research useful and well-integrated. This one never sparked for me. Kerr clearly knows his Humphrey Bogart dialogue, but it comes across like he’s trying too hard. The ability of the protagonist, Gunther, strains credibility and the plot has far too many coincidences. There is also far too much exposition, all too often in the form of extended speeches. The Germany –> Havana split is part of what intrigued me, but Kerr makes a hash of it. I also didn’t care for how he had his characters intersect with figures from history. Once again, this move just made the story hard to believe.