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.
Description:
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.