"Mytilene," he told them, "is a pleasure world. Or, rather, I should say worlds. You can fly from any planet to any other in the atmosphere.
"The whole ball, which is much larger than Jupiter, is held together by electromagnetic forces created and maintained by the machines and the robot brains on the centre planet - which spins of itself, but does not move within the gaseous envelope.
Kenneth Bulmer (1921 - 2005)
Henry Kenneth Bulmer was born in London in 1921. He was a prolific author, writing over 160 novels under a bewildering array of pen names, and including adventure, historical and western novels, as well as TV tie-ins in addition to his prodigious science fiction output. He died in 2005.