When matriarch Nana invites the dysfunctional Darker family to her Cornish tidal island estate for her eightieth birthday, twenty-nine-yearold Daisy reluctantly attends the reunion, having successfully avoided her relatives for years following a tragedy no one will discuss. After the group is stranded for the evening until low tide, Nana sours the already tense atmosphere with an announcement about her will. And then her body is found…the first of several to follow. With a sinister nod to Agatha Christie, this thrilling mystery packs a killer twist!