Contents: 7 • Introduction by John W. Campbell, Jr. 13 • QRM - Interplanetary • (1942) 57 • Calling the Empress • (1943) 89 • Recoil • (1943) 129 • Lost Art • (1943) 161 • Off the Beam • (1944) 203 • The Long Way • (1944)

UK Edition. Volume two of story cycle around the nerve center of the Solar System. Cool 1940's tropes.