Batman - Dark Victory #10 2000

Batman: Dark Victory #10, published by DC in September 2000, sees Batman continuing his search for Harvey Dent as Mr. Freeze unexpectedly enters the fray. The Hangman killer's spree intensifies, claiming the life of Officer King. This issue is notable for Dick Grayson making a pivotal discovery, a key moment in his progression towards becoming Robin, marking a significant development in Batman's early career as Gotham's criminal landscape shifts from mobsters to costumed villains.