"Oh, this must be the part where blood starts gushing from the taps and we have a small monster of our own to entertain us." Well, she did loosely describe the opposite of what had happened a week or so ago, and Sato can make an educated guess.

He's mildly surprised more than anything. Yes, the endless abyss is a little menacing, even to an immortal, but after the initial awe over the change of surroundings, he's back to footsteps clanging against the rusted grate, still in pursuit of that odd noise.