He's prepared to offer anything when she says she needs further help. What he's asked for, though, causes him to simply stare for a moment.

What the hell?

Suddenly more wary than before, he looks over each shoulder--even up at the ceiling, too. He sees nothing, and that only disturbs him more. As if to interrogate her, he leans forward and speaks quickly. "...Voices? Where? What're they sayin'?"