HOLY SHIT AGAIN! I have yet to read any of the trilogy Game, Set, Match, after Berlin Game (hard to track down) but I did jump over to the wikipedia site to check out the plots and such for the last two books, since a russian kidnapper appears nowhere in the first. Anyway, in the plot for the second book Mexico Set, there's an interesting bit about, well fuck it, here:
"The trouble begins in Mexico, where Samson is on the trail of his
Soviet opposite number: Erich Stinnes, a KGB major whom London Central wishes to recruit, to enroll, to coax over to the West...
The task of laying the delicate and elaborate groundwork for Stinnes' defection propels Samson from Mexico to London, to Paris, Berlin, and the East-West border. What happens along the way—
a temporary abduction..."