Deep in the woods, a child with green-tinged skin and long matted hair awakens. She is Isabella Leland, daughter of a healer who was executed as a heretic some 300 years earlier. On her mother's death, Isabella was taken in by the crow people---faierie folk---who can manipulate space and time. The first time she returned to the real world, Catholics ruled England. Now, those who follow the pope are regarded with suspicion and shunned. When Isabella emerges from her hiding place, she's discovered by another outcast, Elizabeth Dyer, whose family follows the old ways. Elizabeth wants to befriend Isabella, but she has her own troubles. Her brother has brought home a priest in need of shelter. Hiding him is an act of treason, and his pursuers are closing in. Sarah Singleton has a gift for blending the seen and the unseen, the matter-of-fact and the magical, into a convincing whole. Here she offers a fast-paced plot---a cat-and-mouse game between hunter and hunted---while exploring questions about religious faith and fanaticism that will resonate with YA readers.