CHTHON. New York: Ballantine Books, . Small octavo, pictorial wrappers. First edition. Ballantine U6107. "The hero must escape from a terrifying prison planet and go in search of his own true nature. A confusing tale, but vivid and grotesque." - Pringle, The Ultimate Guide to Science Fiction, second edition, p. 66. The author's first book. 1967 Nebula and 1968 Hugo nominee. Anatomy of Wonder (1995) 4-14. Sargent, British and American Utopian Literature, 1516-1985, Additions. Survey of Science Fiction Literature I, pp. 354-57. A very good copy. (#139776).
"First U. S. edition: July, 1967" on copyright page.