THREE WORLDS TO CONQUER. New York: Pyramid Books, . Small octavo, pictorial wrappers. First edition. Pyramid Books R994. Space opera set on and in the vicinity of Jupiter. Settlers on Ganymede oppressed by a rogue admiral in command of a heavily armed military spacecraft. Top edge of rear cover mistrimmed a bit proud, else a fine, unread copy. (#142402).
"A PYRAMID BOOK -- First printing April 1964" on copyright page.