Reading, Pennsylvania: Fantasy Press, 1950. Octavo, cloth. First edition. One of 300 numbered copies signed by Verrill. First published in AMAZING QUARTERLY, Fall 1929. [Reference: Gernsback, Science-Fiction: The Gernsback Years 1548. Teitler and Locke, By the World Forgot (2013) 1236. In 333. Reginald 14659].