[Sophie is surprised by that hug, but thankfully she's in a pleasant enough mood that she lets him hug her without even stiffening. in fact, she might hug him back just a little]

Are you all right, Doctor? Only, you seem to be acting a bit odd. Are you sure you're well enough to talk to Audrey? Not that I find her a terribly likely suspect, unless you have more information than I do? Is it simply because she knows so much about the CATs? I suppose they could be used to explain our weather troubles and the like...