Nikki Black, intent on punishing the mother who abandoned her at birth and left her to grow up in an uncaring care system. Nikki goes to the island with only one aim in mind: revenge. But her plans are confounded by the discovery that she has a brother. Not just any brother but a brother strangely possessed by their mother; a brother with a terrifying violent streak; an apparent simpleton whose head is filled with the stories of past islanders, Crofters, Vikings, Little People.