"Little bit."

Andrew's not smiling. Not at all.

"Somewhere in this town there's a Sulcar demon with an oversupply of hysk. Maybe he hasn't got any young of his own to feed it to, maybe he's producing more than they need, I don't know. But either through a middleman or directly, he gets it to you, and you sell it to college kids as a brain-booster. And they get smarter, and if they try to quit they get a whole lot deader."

His lip curls.

"And you get richer."