"Really?" She asks, intrigued, because the world she is from is definitely not one where the Flash is a real person. That said, she doesn't dismiss the possibility immediately, after all the ghosts lived in a different dimension (the word might not be appropriate, but it was the best she had currently), she was currently in an entirely different place to one she knew, and he was from a different one still, perhaps there was something to the multiverse theory after all.

"So," she said decisively, assorted purloined technology successfully squirreled away in her pockets, and straightened up, swinging her pipe over her shoulder and grinning at him "You want to go bust some robots?"