Daughter of a troubled artist, Nessa Penwellyn has always struggled to feel settled. Used to making her way alone, an unusual bequest turns her world upside down. With trepidation Ness exchanges life abroad for her Cornish inheritance, a crumbling castle on St Pirran Island, and solitude for her newly discovered relatives - some more pleased to learn of her existence than others. Resentment, tension and mystery swirl around Pirran Island like deadly currents and the rocks beneath the sea are no less threatening than gathering developers or scheming cousins. Independent and determined, Ness must now decide who to trust in order to prevent the island legacy being lost forever. But can Ness's heart keep her safe from the one man who may cost her everything? Or are deeper secrets hiding within the echoes of the past?