Batman (1940) #690
an issue of Batman (1940) by DC Comics
Issue description
Penguin ups the ante in his bid to become Gotham's top crook and enlists a few of Arkham's finest to keep Batman busy. Meanwhile a mysterious presence enters the scene to aid the Penguin - or is there another motive at play? And Two-Face takes a massive leap forward in uncovering one of Batman's greatest secrets.