"Sound? What sort of sound?" It's making a sort of normal running water sound at the moment, as far as he can tell, but hey, this is potentially valuable data...and something to keep in mind if he does wander off with a bottle of it.

That gets a snort out of him. "Yes, buried." It's too spot-on, really, and he sort of coughs and clears his throat. "In...lab work." Not that he's quite sure where the lab is anymore. It too likely got buried; he could only imagine things got worse after he died. Probably for the best.