In the windswept hills of medieval Cornwall, the powerful Book of Seasons passes from mother to daughter, entrusted to those who will carry on the sacred traditions of healing and wisdom. Young Megge is meant to inherit this legacy and embrace the path of the healer. But when she touches the book, she is consumed by fear of what she will become if she accepts her birthright.
Terrified of the power she does not understand, Megge resists her destiny, even as a heretic-seeking Blackfriar abbot stirs public sentiment against the women of Bury Down and long-buried family secrets rise to the surface. As she unravels the truth, Megge must decide: will she claim her birthright and face the shadows that haunt her, or will she refuse it and allow the darkness to claim the lives of those she loves?