On a dark midwinter's night in an ancient inn on the river Thames, a wounded stranger carries in the lifeless body of a small child. Hours later the girl stirs, and returns to life. Is it a miracle? Magic? As the days pass the child remains mute and unable to answer questions. Three families are keen to claim her: the wealthy mother of a kidnapped daughter missing for two years; a farming family sure it is their son's secret daughter; a parson's housekeeper, reminded of her younger sister. Each family has secrets, which must be revealed before the girl's identity can be known.