Murray Leinster 
The Vault [EPUB ebook] 

Murray Leinster was a pen name of William Fitzgerald Jenkins (1896-1975), an American writer of genre fiction, particularly of science fiction. He wrote and published more than 1, 500 short stories and articles, 14 movie scripts, and hundreds of radio scripts and television plays.
The Vault, the Leinster’s story which we propose to our readers today, was published in August 1922 on the
Black Mask magazine.