America's Best Comics #29

When Bob Benton discovers that a charming man calling himself Paul Morelli is actually the Jack of Hearts—a ruthless con artist who's been systematically bilking vulnerable women through a fraudulent investment scheme—he and Tim mobilize as the Terror Twins to shut down the operation. But time is running out: Morelli and his accomplice Mabel have already taken Mary, a widow he recently swindled out of her life savings, to his boat at the harbor with murderous intent. The Terror Twins must race to expose Morelli's files and stop him before Mary pays the ultimate price for trusting a smooth-talking crook.

When a wealthy widow falls victim to a charming con artist named Peter Cachet and his scheme to bilk socialites out of their fortunes, Diana Adams decides her alter ego Miss Masque needs to investigate. Posing as an easy mark herself, Diana sets a carefully laid trap at a hotel—but the swindlers turn desperate when they realize they've been caught, and Miss Masque finds herself fighting for her life against cornered criminals willing to do anything to escape.

When a suspicious inventor named Professor Phineas Jenius arrives with a supposedly working time machine, Dick Martin and Professor Clark find themselves drawn into testing his contraption—only for an accident to send Pyroman hurtling back to the Stone Age. Trapped in a prehistoric world where he encounters a girl who bears a striking resemblance to Joyce Clark, Pyroman must navigate tribal conflicts and face off against fierce warriors and ancient beasts. His combination of superhuman abilities and modern ingenuity prove invaluable as he fights to survive among the caves and clans of a distant past.

Jefferson Jones might be Hepcat High's most useful student, but when both he and rival Horace Gogglepeffer enter a contest to prove who deserves that title for an ambassadorial visit, the two teams clash in a series of beautification projects that spiral hilariously out of control. With Nancy by his side and Gogglepeffer ready to play dirty, Jeff scrambles through painting jobs, grass-cutting schemes, and a final landscaping challenge to claim the honor.

Officer Terry Moore races to stop a gang of saboteurs plotting to destroy a reservoir dam and blame it on a rival construction company—but the crooks capture him and photo-reporter Lane Bartlett, leaving them trapped as dynamite charges tick down. With his wits and determination, Terry must break free and expose the scheme before the explosives detonate and flood the entire neighborhood.