If it's big enough it might be worth seeing where it goes.

[ said absolutely matter-of-factly, with the exactly the lack of shame of someone who has crawled through human-sized vents before. Because she has. ]

Otherwise, you can still hear things from any other openings it connects to. Maybe even other compartments.

[ Secret compartments, possibly. Not likely given they're in a train, and trains tend to be super compact. But then again, most trains didn't go flying through kaleidoscope space. Weirder things have happened.

If nothing else though it might make a good spot for a bug, if she wants to try to get a system up and running here like she has around LeBlanc. ]