On the longest night of the year, the bodies of two young boys are found deep in the woods. Police Chief Duncan Horewood becomes obsessed with one question: why did they go into Greylock Forest? As the seasons turn strange happenings keep occurring in Stokeshaw. Lily Reid is convinced that she keeps seeing her dead brother. Is it grief, guilt, or does her twin have a dire warning for her? Inheriting her mother's place in the small-town gentry, Sonia Prider returns to the home she fled many years ago. Guided by the other Matriarchs, she learns of her true legacy, three centuries in the making.