Hush (Arkhamverse), Heroes & Villains Wiki

Thomas Elliot and Bruce Wayne were childhood friends and, unknown to Bruce, dark reflections of each other. A childhood sociopath, Elliot tried to kill his parents so he could inherit their fortune. When his plan failed partly due to the surgical skills of Thomas Wayne, Bruce's father, Elliot blamed Bruce. An incredibly skilled surgeon as an adult, Elliot planned an elaborate revenge scheme on the Batman. He disguised himself as the villain known as Hush, his face covered in bandages, and plotte

Batman: Hush by Jeph Loeb

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Hush (Arkhamverse), Batman Wiki

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Discussion] What are your thoughts on all 3 of Batman's childhood