If something has been covered up for eighty years, someone, somewhere, knows why…. One cold January weekend in 2019, Nicole Weymouth and her fiancé, Dan, visit a boutique hotel in The Lake District. During the Second World War it was a boarding school for young boys evacuated from London. When a letter falls out of a book Nicole finds in the library, she discovers it was written in 1940 by an eight-year-old boy, Peter Slaithwaite, and he is asking his parents to bring him home because of the horrors he has experienced. The letter was never sent. Still traumatised by the memory of her younger brother’s death when she was a child, Nicole resolves to find out what led Peter to write the letter. The search she embarks upon takes her on a journey full of surprises and terrible consequences for her, her loved ones and all those involved in her investigations.