By the time of this novel Gunther is tired and broken. The death of his wife and his entrapment by nefarious characters seem to wear him down dramatically. By the end of the book there's precious little wisecracking, though there's still a lot of cynicism.
But the story is too convoluted and too unlikely. From the prologue, where Gunther finds himself in Palestine with Adolf Eichmann, onward, I found myself rolling my eyes at how unlikely it all seemed. Philip Marlowe's cases may have been moved forward on occasion by unlikely coincidences, but Gunther's life seems to be determined by some of the most unlikely of events ever. Kerr's attempts to link Gunther to just about every person in Nazi Germany are increasingly annoying, but this plot is simply too over the top to be able to suspend belief.