Garden City, NY: Doubleday, (1960) dj. Hardcover - An off-beat and rather charming work of aliens in medieval England. In the far-off days when people thought the earth was flat, the good folk of a small village were startled out of their peaceful life is invaded by a fantastic spaceship - Sir Roger had been about to leave for the Crusades, but when the aliens begin attacking the town, he conquers them instead. Nominated for the Hugo. Code of C42 on the last page, indicating a 1961 printing. 192 pp. Dust jacket art by by Harry Schaare.