Tim & Open
For the evening Tim had chosen to go as the iconic Wolf Man, which had all but been a forgone conclusion after finding out the costume that his would be date would be wearing for the night. Would be, because she did not actually know who he was, nor would she at all truly be with him during the festivities. At least not as who she thought he was, which should have been more confusing than it was but then Tim was actually used to this sort of craziness.
It all came with being part of the Bat family.
As people began to file in and look around in wonder-even living next door, Tim had been surprised at the sheer mass of what Bruce had pulled off-he kept an eye out for her, while taking the time to mingle with others that he knew.