The book follows two parallel narratives. The first is set in the 18th century, focusing on a packman named Jack Turner who is mysteriously found dead in the valley of Thursbitch. The second narrative is set in the present day, where a woman named Sal and her friend Ian explore the same area, finding themselves mysteriously drawn to the mystery of Jack's death. The narratives intertwine as the boundaries between past and present blur, revealing the mystical and spiritual significance of the valley. The story explores themes of time, memory, and the enduring power of place.