The change to such an artificial environment deeper in fascinates Xix, as he begins to theorize about its nature. Most likely is that Steph's body is biologically almost totally human, and so the artificial components would only be necessary where humans wouldn't have flesh, but it will be interesting to learn the details upon reaching the control room. Right now, however, he quickens his pace, much more comfortable with the marble floor, and silently wonders what might be in the pipes. Considering his location, most likely bile.<br/>"Do your surveillance systems extend to these tunnels?" he asks curiously, unsure if he should expect an answer.