A circle of spies travels by Cadillac from Switzerland to the Sudan in this critically acclaimed novel: "arguably the finest modern American spy story" (The New York Times). Paul Christopher is cool, urbane, clear-sighted—a perfect American agent in deep cover in the twilight world of international intrigue. But now even he does not know which side is good or bad in a maze of double- and triple-cross. When a small group of international agents embarks on a road trip from Switzerland to the Sudan, Christopher is among them. Along for the ride are a comical Polish exile, a beautiful Hungarian seductress, and a North African prince with an appetite for women and a lust for power. Christopher only knows that he has to find whose finger is on the trigger of a terrorist threat that could turn the Cold War uncomfortably hot—and God help everyone if he makes a mistake.