Settled into her new life in Devon, England, Hannah Heronstone seems to have it all. A beautiful child, a loving husband and a fledgling business. She's come to terms with who she is, a witch, a healer and cunning woman and has surrounded herself with her sister Midsummer Women. But dark clouds are gathering over Wentworth Manor.

Trouble arises the day she hires a new gardener Raf. Handsome, manipulative and dangerous, his presence causes friction at work and in her personal life. By day, incessant rains threaten her herbal medicine business, flooding her fields. At night, strange visions plague her. lfwyn, a young Saxon Midsummer Woman, battles an ancient foe known only as Hrafen. The Raven.

When an ancient waterway springs to life, it leads Hannah to the shrine of the goddess Azenor, where she bargains for a cure for Peter, her husband, who despite her magic, she cannot seem to cure. To fulfill her part, Hannah must travel through time, risking her life to save not only her family but aid lfwyn, her old friend Mildritha, and the Wessex Kingdom of King Alfred the Great in their fight against the Raven.