Synthetic Men of Mars
THE UNHOLY LEGION…
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 Mars.
Forthcoming in the Edgar Rice Burroughs Authorized Library.
Synthetic Men of Mars © 1938, 1939 Edgar Rice Burroughs, Inc. Synopsis © Edgar Rice Burroughs, Inc. All Rights Reserved. Trademarks John Carter®, John Carter of Mars®, and Barsoom® Owned by Edgar Rice Burroughs, Inc.