How long will this magic of disguise last?” “The longevity of this spell depends on you, mortal girl,” Mazarine replied. “On how well you guard the stone half of your heart. Be vigilant and your disguise will last unto death. But should the stone within you crack . . . the rest will soon crumble, little by little, until your disguise falls away.” I dwelled on that for a moment. “But you said this enchantment will make me colder. So the chances of me cracking anytime soon are slim.” “It will make you colder. But even the deepest of ice eventually gives way to fire, Clementine.”