sentences:  During this time, Merivel regains some of his fortune by selling John Pearce's recipe for a plague restorative, and reunites with Elias Finn, who has fallen out of favor with the King.Unfortunately, Katherine dies in childbirth, but Merivel's surgical skills are such that he is able to save their baby, whom he names Margaret.During the Great Fire of London in 1666, Merivel rescues an elderly woman from a burning house when nobody else will help, stirred by memories of his own mother dying in similar circumstances when others could not help her.