Bramlingham Abbey sits alone and isolated, crumbling from neglect, hidden from sight by an ever-expanding jungle of vegetation. Violet Cobb, a fearless girl from the coastal town of Grimsby, is left on the doorstep - moved from her home during Operation Pied Piper, designed to keep the children of England safe during the bombing raids of World War Two. She is a conspicuous `townie' in a quiet village of farmers, far away from her friends and family. Left alone with no one but an extremely elderly caretaker, Violet is left to explore the Abbey by herself. She soon discovers two things; that Bramblingham Abbey is full of secrets, and a strange girl called Sarah that no one else seems to know. Sarah claims to be the granddaughter of Lady Audrey, the mysterious owner of the Abbey - but how can this be? While exploring the Abbey, Violet makes a horrifying discovery which changes her life forever.