"Topaz" by Leon Uris (Vintage Paperback)

On the eve of the Cuban Missile Crisis, American and French intelligence agents are plunged into a maze of Cold War intrigue In Paris, 1962, French intelligence chief André Devereaux and NATO intelligence chief Michael Nordstrom have uncovered Soviet plans to ship nuclear arms to Cuba. But when Devereaux reports his findings and nobody acts—and he is targeted in an assassination attempt—he soon realizes he’s tangled in a plot far greater than he first understood.

4th printing of the Bantam Books edition, circa 1969.