BONUS - Superman Summer: The Yellow Mask and the Five Million Dollar Jewel Robbery

<p><span style="font-size: 10pt;">It's an epic rematch between good and evil as the criminal mastermind known as the Yellow Mask returns to battle the Man of Steel! One of the first villains Superman fought on radio is back in a fifteen-part serial that originally aired between October 7 and November 8, 1940.</span></p>