Edition: First printing.
New York: Dial Press, 1974. dj. Hardcover first edition - This story of suspense involving computers in the basement of the Pentagon which hold the most valuable secrets of the US, is perhaps the most uncommon of Koontz's books - the publishers went so far as to create a "biography" for this "first novel." 246 pp. ISBN: 0-8037-83388.
Condition: Ex-library with relatively few markings but severe spine slant (attesting to its popularity), in a good unmarked dust jacket. Original price of 8.95 still present.