Synthetic Men of Mars - Burroughs, Edgar Rice

Synthetic Men of Mars by Burroughs, Edgar Rice

Format: Mass-Market Paperback

Published by Del Rey Books, 1981

John Carter desperately needed the aid of Barsoom's greatest scientist. But Ras Thavas was the prisoner of a nightmare army of his own creation -- half-humans who lived only for conquest. And in their hidden laboratory seethed a horror that could engulf all of Mars.