Independent, tart-tongued, and unorthodox, herbalist-healer Grace sticks out like a witch's teat in a God-fearing community and stands accused of conjuring a late-term miscarriage, bewitching crops, and shapeshifting. When the court orders a trail by water, Grace is stripped and cross-bound in a burlap sack and ducked into the waters of Lynnhaven River. Will she sink or swim?.