The sound of chaos erupted across the city as a green dusk blotted out the sun.  The light emanated from the center of downtown where the heroes were converging and had a sickly aura surrounding it. As the various heroes converged on their way to the Tower, a creature of apparent evil oozed from a crack in the ground.  Possessing no face, the head was instead a pure black void, seeming to suck in the light around it. Fully emerged, it cleared the height of the streetlights.  It indiscriminately began blasting the surrounding buildings and street with a beam from its face of the same color.  Cars erupted in flame and the metal from the building glazed the sidewalks.