2019: Under cover of darkness, Kate flees London for ramshackle Weyward Cottage, inherited from a great-aunt she barely remembers. With its tumbling ivy and overgrown garden, the cottage is worlds away from the abusive partner who tormented Kate. But she suspects that her great-aunt had a secret. One that lurks in the bones of the cottage, hidden ever since the witch-hunts of the 17th century. 1619: Altha is awaiting trial for the murder of a local farmer who was stampeded to death by his herd. When Altha was a girl, her mother taught her their magic, a kind not rooted in spell casting but in a deep knowledge of the natural world. But unusual women have always been deemed dangerous, and as the evidence of witchcraft is laid out against Altha, she knows it will take all her powers to maintain her freedom.