Fantastic and Sinister Are the Lowlands into Which Philip Grant Descends on His Dangerous Assignment.In the year 2020 the oceans have long since drained from the surface of the earth, leaving bared to sun and wind the one-time sea floor. Much of it is flat, caked ooze, cracked and hardened, with, here and there, small scum-covered lakes, bordered by slimy rocks. It is hot, down in the depth of the great Lowland areas, and it is chiefly adventurers and outcasts of human kind who can endure life in what few towns there are.Into remote Lowlands, in an invisible flyer, go Grant and Jetta-prisoners of a scientific depth bandit.Fantastic and Sinister Are the Lowlands into Which Philip Grant Descends on His Dangerous Assignment.