[ Crowley shakes his head, slowing his pace as they climb the stairwell. ]

I've got no idea, angel. Hopefully something useful.

[ It is quite a ways, leaving even Crowley winded. Though, in all fairness, he's as averse to working out as Aziraphale. The sound is gone, but there is something else. The murmuring of people - Crowley recognizes a couple of the voices as fellow oysters, but also a number of others who are less than familiar. ]

Weird. I can hear them clear as day. You reckon this is how they spy on us...?