Secrets of the Unknown #90

When a curio shop owner insists a stone statue is a thief frozen by Medusa—and warns that the door behind him leads straight to her—customers laugh… until they notice how quietly the shop has gone.

In "I Saw Diablo! The Demon from the Fifth Dimension," a mysterious smoke monster from beyond space and time descends upon Earth, threatening to erase humanity—until a lone adventurer discovers a shocking way to outwit it, using nothing but a lighter and a clever ruse. The story unfolds with tense, creeping dread, as the line between fear and deception blurs in a battle of wits against an otherworldly force.

In "Flash Gordon and the Mole Machine," Flash and Dr. Zarkov dive deep beneath Mongo’s surface using a strange machine powered by alien tech, uncovering a hidden underground sea and a forgotten city. Captured by Princess Darla and sentenced to live out their days in the subterranean realm of Krenkelium, they must find a way to prove their worth—before the city’s true danger consumes them all.

In "Midnight with Mandrake!" from Secrets of the Unknown #90, Mandrake and Lothar spot a malfunctioning candy ring sign releasing gas that’s affecting the crowd. With a clever twist of his hypnosis magic, Mandrake uses the smoke rings to trick the criminals into believing they’re iron rings, leading them to surrender peacefully.