Garden City, NY: Doubleday & Company, Inc, 1955. First Edition. Hardcover. 191pp. Black cloth stamped in red on the spine. "... a complex story of time travel and time paradoxes considered by some critics to be his best work." The Encyclopedia of Science Fiction, eds. Clute and Nicholls, 1999, p. 57. Internally clean. Faint discoloration to the top edge of the cloth on the front panel, tiny check marks next to list of titles. A bright, near fine copy in very good dustjacket with mild edge wear and a touch of soiling to rear flap, a couple of small chips to spine panel, and mild fading to the lower edge of the front panel. Barron, Anatomy of Wonder, 1981, 3-41.; Octavo.