First English-language edition of this 1964 novel by the Polish science-fiction writer. Translated (from the 1967 German edition) by Wendayne Ackerman. NY: The Seabury Press, 1973. First edition. Octavo, 8-1/2 x 5-5/8 in. 183pp. Blue cloth boards, black spine lettering; in dust jacket. Some very light spotting to textblock top, faint off-setting to endpapers. Else fine in a very good (+) jacket, price-clipped, showing light wear to spine ends, a few scratches to front panel.