"Yes, well...there's that, at least." Sherlock wasn't sure how badly the fight would have gotten if they followed them here. Did the Ringmaster have special defenses? If they did come here, he'd likely be dead or turned. He was pretty much out of the fight when they got kicked back here.

Blue eyes flicked up over his book, as he studied her a moment. Even before his changes, his gaze was intense, picking out clues and deducing what he could from people he came across.

"I've never seen you before."

He hasn't seen her before, but she spoke as if she were a veteran, obviously. At this point he wasn't sure he could trust his assessment of people's changes, for all he knew what she looked like could be actually what she was. If she was a veteran though, they were likely from the Carnival. Balance of probability.