The investigation leads him to the remote village of Devil's Bridge, where Helen Jenkins' body is found at the bottom of a deep ravine, not far from the site of an old children's home that she ran for many years. The home was closed 15 years ago, and the building is now a hotel, but the untouched attic reveals a snapshot of a tortured past. Only by unlocking the secrets of the children's home can Mathias crack the case and reveal the murderer.