Keen Detective Funnies #2

Dean Denton, the scientific adventurer who swapped his ventriloquist's microphone for detective work, teams up with his aide Carol Kane to investigate a string of vanishing men—and discovers they're connected to a mysterious villain known as the Conqueror. When Dean goes undercover to infiltrate the operation, he uncovers a hidden cavern complex where the missing men are being held and forced into labor, but his discovery comes with a deadly price when Carol is captured as well. Now Dean must use his wits and whatever resources he can find to outwit the Conqueror, free the prisoners, and escape before the villain's trap springs shut.

Detective Mike Moran takes on a cunning jewel racket where a smooth-talking con man poses as an insurance appraiser to steal from wealthy women, imitating their husbands' voices over the phone. When Moran tracks the thief—the notorious "Penthouse Patsy"—to a dingy apartment, he discovers the criminal is an old nemesis who's determined to even the score. What begins as a clever investigation becomes a dangerous confrontation where Moran must outthink a desperate adversary who has nothing left to lose.

August Vollmer of Berkeley, California stands as one of the world's leading criminologists and the "West Coast Nemesis of Criminals," pioneering the use of radio and the lie detector in police work to revolutionize crime detection. This profile highlights his remarkable record of solving over 10,000 cases in a decade without error, many of them seemingly unsolvable crimes. His innovations in scientific crime prevention have shaped modern law enforcement.