"He probably looks exactly like you're picturing," says Alex, perching on the edge of the counter. She's not self-conscious about sitting there in panties and a t-shirt in front of him; he's seen her in a lot less, after all. "Lethe is the ninth house of Yale," she says. "We are the shepherds." She rolls her eyes. "Basically, the societies are into all kinds of arcane shit and its our job to keep them on the straight and narrow."