New York, Ballantine Books, 1958. First Edition. First Impression. Hardback. A very good copy. This is the first US edition, preceded by the British edition by a year. One of Wyndham's greatest and amongst the finest works of British SF. Some wear to the corners and spine tips. A couple of short, closed tears. Some rubbing to the boards and bumping to the spine tips. Cover art by Richard Powers [7988, Hyraxia Books].