Batman #548 1997

Batman #548, published in November 1997, initiates "The Penguin Returns Part 1: Burning Faces" storyline. Bored with his legitimate casino business, Oswald Cobblepot reverts to his classic criminal persona, declaring war on a rival gang and Batman. He executes a peculiar jewel heist, leaving an egg as his calling card. This issue is notable as the first part of Penguin's return to active villainy, abandoning his underworld leadership. It also offers a flashback appearance of Ma Cobblepot, shedding light on Penguin's origins and umbrella obsession.