The voice - and the smell - are unexpected. He'd assumed she would approach form the front. Perhaps she'd done it to get a rise out of him...
"Sounds like we've come to the right place." he says, offering a smug smile for her benefit. "Troubling, though. Most cults are harmless... but these apparently have at least some real power." The smile is dismissed. "It's too great a risk to simply take them head on, as we are. A numbers game, really."
There are other options, of course. "Can you get one of them alone?" he asks, arching a brow. "We can learn a great deal in a small span of time. Not to mention that my talents are enhanced by the presence a recent meal. It's... difficult to describe."