Book excerpt: Afra Wilson and her brother do well to live on a small farm outside the hamlet of Brook on Creek in northern England. They are not only Catholics - Afra is suspected of witchcraft. When her brother disappears, the young woman seems lost. But the worst is yet to come: in a heavy snowstorm, a stranger gains access to the small farmhouse. What she does not suspect is that she has give shelter to King James I's chief witch hunter. And the snow continues to fall...