New York: Harcourt Brace Jovanovich, (1977) dj. Hardcover first edition - A man travels into the future in search of a fabulous jewel, and finds himself having to cross "the line" - a heavily patrolled and war devastated area between the Northern industrialized regions and the Arab-ruled South, rich in oil, but dangerously overpopulated. A "deeply disturbing view of two societies, equally barbarous, truncated parts of what might have been a civilized whole." Translated from the Italian by William Weaver. In Barron, Anatomy of Wonder, 1981, 5-180. 347 pp. ISBN: 0-151285306.