“And what do you really do?” said Tiffany. The thin witch hesitated for a moment, and then: “We look to . . . the edges,” said Mistress Weatherwax. “There’s a lot of edges, more than people know. Between life and death, this world and the next, night and day, right and wrong . . . an’ they need watchin’. We watch ’em, we guard the sum of things. And we never ask for any reward. That’s important.”
