The night sky was almost blue over the city of Metropolis, all the lights causing it to almost seem like day. This didn't please the Batman. He was more used to Gotham, where even in day it was like night.

He trained his night-vision bat-oculars, as Robin liked to call them, on the Retron Tower, where quite a crowd was gathering for the party that night. Civilians walked by on the sidewalk, while superstars and supermodels walked up the stairs to the entrance to the tower.

Batman was one with the shadows caused by the bright lights. It was hard to find a decent puddle of blackness in this city. Quickly, and as silently as possible, the black-cloaked figure sprinted across the rooftop and jumped off the roof, activating his grapple-gun as he soared, so that it swung him around the Retron building to the other side that faced away from the street, and into an open window on the 31st floor.

Batman landed softly on the floor, knees bent. He was in an empty office, but he didn't pause to examine his surroundings. He walked straight to the door without pausing and leaned against it, listening for any noise outside. After a few seconds, he opened the door and swept through it, closing it behind him after his cape swished through. The corridor was dark; nobody seemed to have any need to be in the offices tonight, not with the party going on downstairs.

Batman had been counting on this. He continued down the hallway, searching for one door in particular amongst the nondescript ones that lined the corridor.

He eventually stopped near the end of the hallway, at a door that appeared just like all the rest. He opened it cautiously.
When nothing sprung out from the blackness, Batman unclipped a small flashlight from his belt, and shone it into the dark office. Its light revealed a desk and chair, and some filing cabinets.
Batman stepped into the room, and then went over to the cabinets and began searching through files.

"Gotcha," someone said from the dark.

Batman didn't even swing his flashlight over. He dropped it to the ground.

It illuminated a small part of the cheap carpet floor, allowing a pair of high-heeled shoes to be seen. They quickly stepped out of the light, and a battle ensued. Punches could be heard, and kicks. Eventually, the sounds of scuffle stopped. The high heels walked back into the light, and a hand briefly came into view.
The light clicked off.