Detective Comics #640 1991

Detective Comics #640 concludes "The Idiot Root" saga, titled "The Cook, the Bat and the Idiot." Batman pursues the terrifying villain known as the Idiot to Rio de Janeiro. The Idiot, a monstrous entity that devours minds, causing its victims' heads to implode, is finally confronted. Batman uncovers the Idiot's core personality, Caesar Lopez, and exploits his profound fear of birds to achieve victory, leading to the villain's physical demise. This issue marks the dramatic finale of a unique storyline.