Award-winning writer Brian K. Vaughan (Pride of Baghdad" and "Y: The Last Man") uniquely combines big-city politics and superheroes in this acclaimed series. In this ninth volume, Mayor Hundred descends into the sewers of New York City to learn why he was given the strange powers that helped him become the heroic Great Machine. Also, a powerful new foe reveals a terrifying plan that"s been in the works since the very first issue of "Ex Machina".