A strange world in a bubble of anti-gravity gas at the bottom of the Pacific Ocean and the sinister Overlord, flying plants and green people living in it. A godlike but decadent race of superhumans living in outer space, and the love of a girl from this race for the earthling astronaut she saved, the ancient Moon millions of years ago, where the drama of the last conflict between living Selenites and cyborgs unfolds - all this is in the stories included in Jack's collection Williamson, one of the founding fathers of American fiction.