BATMAN (1940) #548

The Penguin, bored with his life as a casino owner, returns to his old role as a master criminal and starts by declaring war on both a rival gang and the Batman. Penguin is back with a vengeance on Batman and the false face society after both parties ruin one of his money grabbing schemes. Includes the return of the Aviary: Penguins original lair where he plotted his dastardly schemes.