Sure enough, when Gordon looked at the shadow that had appeared in the corner of his eye, he saw Master Wayne perched on the signal tower on the roof, his cape fluttering behind him.
He had just landed after gliding through the air.
Em~ Why didn't he land on the ground like a certain other person? That was because it was Luke's choice to keep a low profile, not Master Wayne's.
After he was done posing, Master Wayne made sure that there were no eavesdroppers nearby before he jumped down.
Gordon shifted his gaze, only to see three people already standing silently where Master Wayne had landed: the battle goddess, Diana, in her red and gold battle outfit; Barry, in an all-red suit, and Luke, Master Wayne's impersonator.
Gordon's attention lingered on Luke for two seconds before he looked at Master Wayne. "Apart from this person, how many other Batmans like you are there?"