“But I am weak-willed,” said Gerta glumly. “If I wasn’t, the witch would never have caught me.” Livli shook her head. “You may be or not be, but it’s no bearing on the matter. Being an empty vessel, magic will always take you very hard, I think, and leave something of itself behind for a time, like dregs at the bottom. But at the same time, it can’t really get at the core of you. You can be filled up and emptied out, but the pot does not become its contents.