(From the publisher):
It started with a senseless murder. Then it spread - all over New York men were becoming robot-like automatons without emotions. The Man Of Bronze went into action. But even Doc Savage was stricken helpless before he solved the terrifying menace of The Death's-Head Grin!
First published in Doc Savage Magazine # 38 April 1936 - written by Laurence Donovan.
Original title: The Men Who Smiled No More
Genre: Fiction→ Adventure→ Male-Action/Adventure