"I have absolutely no idea what you're talking about." How was that for plausible deniability?
He blinked. "For a moment I thought you were asking about Langley. Which is as it's ever been." Wry face. "We've made contact with an FBI agent who handles these sorts of disappearances and has an excellent track record - Kieran Townsend, if that rings any bells - and I think he's trying to get assigned to the case. So that should be something."
He didn't think now was the time to tell her he suspected her ex-husband of being involved.