After one of their friends disappears, three young Soviet Jews hijack an airliner, hoping to find freedom from persecution. Veteran thriller writer Seymour's (The Heart of Danger) 1977 novel might seem dated given the collapse of the Soviet Union, but it remains fresh because of the concentration on moral ambiguities that has won him comparisons with Graham Greene and John le Carr‚. The dilemma here is whether the three are victims, terrorists, or both as several nations agonize over the conflict between political freedom and the safety of innocent bystanders. The author is more concerned with mood and character than plot and occasionally undercuts the suspense by switching from the plane to a subplot, but his tale remains engrossing. Nigel Graham's smooth reading complements the story's subtleties. Recommended for public libraries.ÄMichael Adams, CUNY Graduate Ctr., New York Copyright 1999 Cahners Business Information.