[quote=knight125]
Once Katherine and Sue arrive at the gym, Bruce says, "You were awfully close to being left behind." He leads them to the center of the gym where three large, metal circles seem to appear from nowhere. Bruce steps on one then says to the girls, "Let's go."
[/quote]

Katherin looked at the metal circles. She knew Batman was knew for gadgets, but she had no idea what these things were or what they were. She wanted to asked but stopped herself, she already pushing his patience. It didn't matter what they were as long as the got them to Phoebe.