Batman: Detective Comics, Volume 8: Blood of Heroes

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"With Bruce Wayne sidelined-perhaps permanently-former Commissioner Jim Gordon has taken on the mantle of the Bat, with a state-of-the-art suit of robotic armor and the full support of the Gotham City Police Department to back him up. But when you become the Batman, there's a deadly learning curve-and an army of crazed criminals waiting to take you down. Can Gordon keep up? Or will his enemies and allies alike clip the new Batman's wings before he even gets off the ground."--Page 4 of cover