(From the publisher):
The deadliest weapon ever devised is unleashed upon the world. A twisted message, scrawled by a blind man, is the only clue to the flashing lights of shuddering death. Doc Savage calls upon every known secret of science in his fierce battle with The Oxygen Destroyer!
First published in Doc Savage Magazine # 77 July 1939 - written by Lester Dent and/or Harold A. Davis.
Original title: Merchants of Disaster
Genre: Fiction→ Adventure→ Male-Action/Adventure