Super-Mystery Comics v1 #3

This is an anthology issue featuring multiple heroes. "Sky Smith" involves the titular character on a ship rescue mission to Hawaii where he discovers a stowaway and uncovers a plot involving the Keota crown jewels and a woman named Madame Marva, leading him to pursue a mysterious figure named Mason. "Vulcan" follows the volcanic-powered hero as he stops the criminal Torchy Fargo's plot and a burning truck, after which Vulcan declares his devotion to serving humanity. A separate story features the Black Spider confronting criminals and a masked woman named Peggy, with the Black Spider pursuing them after they attempt to remove her mask and discover her identity.