Detective Comics #604 (1989) from DC Comics, featuring 'The Mud Pack' storyline, Part 1 of 4. Written by Alan Grant with art by Norm Breyfogle and inks by Steve Mitchell. The cover depicts a dramatic confrontation involving Clayface, with Batman's emblem visible, and a gloved hand deflecting what appears to be a blade or pin. Priced originally at $1.00 USD / $1.25 CAN. Approved by the Comics Code Authority. Includes a free full-color Batman mini-poster inside. This issue is part of a notable Batman villain arc centered on Clayface and is sought after by DC Comics collectors and Batman enthusiasts. A classic late Bronze Age / early Modern Age DC title with iconic Norm Breyfogle artwork.