Caprifoil is the code name of Leroi, a French agent, who disappears, while another man who worked with him on that ""old German business"" of 1964-65 is killed. Two, and primarily one, of their associates are afraid that there but for the grace of God. . . and they pursue something called the Saracen Vector which stretches from the Middle East to China and includes the kidnapping of the French president. . . . Classify this good and give it priority in the genre.