This is a great collection of action short stories by H. L. Gold from "The Golden Age of Science Fiction". Featured here: "Grifters' Asteroid", "The Enormous Room", "At the Post", "Menace of the Mists", and "Never Come Midnight".
Horace Leonard Gold (April 26, 1914 – February 21, 1996) was an American science fiction writer and editor. Born in Canada, Gold moved to the United States at the age of two. He was most noted for bringing an innovative and fresh approach to science fiction while he was the editor of Galaxy Science Fiction, and also wrote briefly for DC Comics.