It’s not bad, overall. It’s very much mired in “middle of the Cold War” hysteria; which dates the narrative a little bit. Still, the cat & mouse extraction of the high-level defector is reasonably well executed, and the story is sufficiently interesting that you want to stick around and see it through. The characters are a little forgettable, and most are just “names” or introduced and disposed of at such a rapid pace that you never really feel any profound attachment to most of them. Also, the men are all very alpha, with the women being (mostly) eye candy to gaze longingly at the menfolk and hope to be taken to bed by the story’s end. Still and all, not an entirely unexpected thing in a spy caper novel from this era. Overall, not bad but it lacks the distinctiveness that marks better spy stories, or makes them endure.