The Sign of the Mute Medusa — Ian Wallace

WELCOME TO PLANET TUROUOIS

-- where the marvels of technological progress have turned the seas to acid, and the air outside the great domed city to poisonous gas

-- where the affluent, exquisitely civilized ruling class has devised a program of population control that will leave only themselves alive

-- where a mysterious group of rebels is somehow disturbed by all of the above -- disturbed enough to launch a cunning and complex campaign of killing, kidnapping, impersonation, seduction and time-change

Welcome to Planet Turquoise -- where the most ingenious and incredibly exciting science fiction adventure of the year awaits you!