(From the publisher):
The navy's new ultra-secret super weapon vanished from the skies - pilot and plane eaten up by a yellow cloud a quarter of a mile long. The country's military safety hung in the balance until The Man Of Bronze uncovered the deadliest spy apparatus ever.
First published in Doc Savage Magazine # 72 February 1939 - written by Lester Dent.
Original title: The Yellow Cloud
Genre: Fiction→ Adventure→ Male-Action/Adventure