Doorway to Destruction

"Doorway to Destruction" by Garold S. Hatfield is a science fiction tale from the early 1940s that centers on a scientist, Kelvin Martin, whose groundbreaking invention—a universe-warping machine—becomes a tool of treachery in the hands of his ambitious assistant, Jon Vance; the story highlights the risks of unchecked greed and the unpredictable impacts of advanced technology as Martin is held captive while Vance plans to exploit the machine to reach a dangerous alien realm filled with hostile entities, with the scientist understanding the devastating consequences that await Earth if Vance succeeds, and as Vance starts their experiment, Martin’s deep understanding of science underscores the potential catastrophe they are about to unleash, culminating in a tense moment as the machine makes its return, bringing with it the looming threat of invasion.