New York: St. Martin's Press, (1990) dj. Hardcover first edition - The author's third novel, and the second in the mystery series featuring publishers and amateur sleuths Ben and Carrie Porter. They take a working vacation to a recently deceased author's Riviera home, hoping to get the rights to his last novel, only to find that he has set a final challenge for his heirs. 262 pp. ISBN: 0-312050062.