Chicago, Shasta, 1951. First Edition. First Impression. Hardback. A near fine copy. Brown's second work of science fiction containing 10 short pieces, including 'Knock' which starts: 'The last man on Earth sat alone in a room. There was a knock on the door.' A lovely copy. A little wear to the top of the spine. A nice copy, a little dusty. Spine tips a bit knocked, some toning to the rear panel. Cover art by Malcolm Smith [9027, Hyraxia Books].