Doll Man #40

When Sarconi, a master criminal fresh from prison, steals Darrel Dane's growth vitamin to transform himself and his gang into giants, Doll Man and Doll Girl must track the colossal criminals before they pull off the robbery of the century. The tiny heroes race against time to stop Sarconi's plan to raid Tiffany's jewelry store from below, where ordinary safeguards mean nothing against men of superhuman size and strength. It's a battle of wits and willpower as the mighty mites face their most formidable challenge yet.

When a mysterious criminal calling himself Mr. Magnet uses a revolutionary magnetism technology to pull off a daring heist, Doll Man and Doll Girl [Darrel Dane and Martha Roberts] discover he's far more dangerous than any crook they've faced before—and he's set his sights on stealing a uranium-powered nuclear engine. As the diminutive heroes race to stop him, they must contend with an opponent whose scientific genius is matched only by his ruthlessness, and whose mastery of magnetic forces puts even their wits and speed to the test.

When a feudal mansion's legendary statue of Julius Caesar begins to bleed, Doll Man and Doll Girl arrive to investigate—only to discover that Eben Slade, the mansion's master, has been murdered under mysterious circumstances. As the tiny heroes work to uncover the killer among Slade's greedy relatives, they must separate fact from superstition and race to protect a blackmailing housekeeper before the murderer strikes again.