Amazing Stories Volume 193 is a great collection of action short stories from "The Golden Age of Science Fiction". Featured here are four short stories by different authors: "Crisis!" by C. M. Kornbluth, "The Engineer" by C. M. Kornbluth and Frederik Pohl, "Einstein's Planetoid" by C. M. Kornbluth & Robert W. Lowndes & Frederic Pohl and "Battleground" by Lester Del Rey.