[He snorts, like oh - now it seems like a pattern, that he's always looking for secret passages to hunt for things in, huh. He hears it, he does. That said, as he taps on the wall again just to be sure— and nods;]

There's always a passageway. And I've been lied to by a building before. There's nothing worse than edifice artifice.

[God. He's in a better mood here, looking for passageways, than he usually is hunched over books in the archives, so there's that, but at what cost. 'Edifice artifice.']

But— yes, I think there are things here the building won't let us see.