The world was imperiled by a terrifying, malevolent force that had the power to change men's minds. Even Doc Savage's own men willingly deserted him when struck by the waves of the Mind-Changing Monster. High in the Sierras, he lived in an incredible fortress - ruthless, omnipotent, preparing to rule the world. But he hadn't reckoned on the superhuman powers of The Man Of Bronze.

First published in Doc Savage Magazine # 53 July 1937 - written by Laurence Donovan.