Tidelands by Phillipa Gregory
It’s Midsummer’s Eve, 1648 and Alinor is waiting in the graveyard until the full moon. She is hoping to meet a ghost there who will free her from her abusive husband. Instead, she meets a young man on the run, James, and shows him how to get across the treacherous marshy landscape where she lives, the Tidelands. Little does she know that in helping a stranger, she invited disaster into her life.