A short nod signals Langdon's understanding. Just a short glimpse but Campanella's reasoning makes sense. It would be a waste of time at the moment. Unless this ritual turns out to be... difficult.
The Stalker frowns and shakes his head. "No where that I know to be safe unfortunately. I have not put time into finding places like that. I have been studying the city and trying to learn about its current history." He shifts his weight. "I would not want to intrude, if that would cause problems."
No worries!