The honest expression is returned -- somewhat; since Myrken Wood, the normally-jovial Coriolanus Helstone has kept much of his emotion behind a politician's mask. If he'd learned this lesson in Collingford, perhaps he'd still be on the opposite end of this desk.
"I believe that any toxin or disease peculiar to the drow may, in fact, be passed to ordinary folk as well, so if this is your plan, you must be careful." A pause. "Hm. What is there to learn? Trust very few, except those that have the pointy objects. I also should have eliminated that fop Bromn as a rival, discredited him somehow -- but I was not willing to play a game that filthy."
He pauses, and narrows his eyes at Burnie. "Are you, Governor?"