The stunning first novel in a new speculative thriller trilogy from the bestselling author of SLATED.Tabby lives a transient life with her mum Cate, never sticking in one place long enough to make friends. Until one day, an accident changes everything. Cate is arrested and Tabby realises her life has been a lie: Cate is not her mother.As she adjusts to her new life, Tabby finds herself drawn to the ocean - the only place she feels happy - and enrolls at a swimming summer school to help her heal ...