Captain America Comics #12 (1942)

The Terrible Menace of the Pygmies of Terror!   A scientist returns from the Amazon with a secret gas that turns people into the size of pgymies to rob and kill for him, and Cap & Bucky must figure out a way to stop him after being shrunken themselves.   The Case of Rozzo the Rebel   Two old comrades, who once swore to share half of the other's wealth in life, suddenly find themselves opposed to one another, even unto the death!   [Introducing the Imp]   The Imp is called forth to fight a monstrous dragon, and not only causes the beast to drown, but he aids in the capture of the Spider and his men.