Casey'd been exploring himself, vigilante gear and all, ignoring what few strange looks he did get. Of course, after the first round of pointing and shrieks, he'd made a quick exit and kept the Hockey-Mask up. He also didn't have anymore face-paint, so no skulls visible as he moved through the crowd. This was like something from a Renn Faire, or the History books.

The creepy bird-figures had definitely not escaped his notice, and the teenager tried to remember if he'd learned about them at all before. Even if he hadn't, he was good at over-hearing things, and whispers of a plague definitely had his attention.

So did someone who was as out of place as he was, in modern clothing. Observing, as she was now trailing one of the bird-figures herself. Stealth wasn't always Casey's strong-point, but he had learned a lot since he'd met the turtles. Keeping back a little, but following the lady in modern clothing, who was following the plague doctor.