Mysteries of Unexplored Worlds #37 (1963)

In a secluded mansion, reclusive genius Proctor Rogg, scorned by humanity and imprisoned for his dangerous inventions, unleashes a mysterious radiation beam meant to test his weapon’s range—only to accidentally transform his beloved pets into violent, monstrous versions of themselves. As the effects ripple across Nebraska, farm animals go berserk and trusted animals turn on their owners, sending shockwaves through the countryside and forcing authorities to confront the mad scientist’s escalating chaos.

In a world still emerging from its watery past, a strange creature with gills but the ability to breathe air ventures onto land, hesitantly exploring his new environment. Though he finds the surface appealing and considers staying, a sudden pull draws him back into the sea—leaving the question of whether others will follow unanswered.

Dr. Hulitt Degnor, a brilliant but paranoid physicist, becomes convinced his cat, Tabby, is a Soviet spy after a breakthrough in his radiation belt formula is mysteriously leaked. As NASA security watches him closely, Degnor tries to prove his theory by secretly recording the cat’s behavior, only to spiral further into suspicion when Tabby acts oddly—leading to a tense showdown over whether the feline truly read his classified notes.

Captain Carveth, an Earth pilot, lands on Mars believing it to be a dead world, only to discover signs of life—and soon after, a Venusian explorer arrives, equally convinced of Mars’s emptiness. As both humans cautiously explore, they unknowingly face the planet’s true inhabitants: silent, alien horrors watching from the shadows. Though they form a momentary bond and believe they’ve found peaceful coexistence, the story ends with the monstrous natives still watching, waiting, and laughing in the dark.

Ronald Lear, a disillusioned physicist working for the U.S. Atomic Energy Commission, finds himself trapped in a surreal, oppressive world after a mysterious experiment goes awry—where he’s treated as a prisoner by a regime that claims to be his savior, yet forces him into a life of isolation and psychological torment. As he struggles to maintain his sanity, he uncovers a web of deception that blurs the lines between loyalty, espionage, and reality itself.