The author of The Girl Who Came Home turns the clock back one hundred years to reimagine the story of two young girls from Cottingley, Yorkshire, who convinced Sir Arthur Conan Doyle and a nation at war that they had photographed fairies in their garden. Back in the present, a young girl learns their story from an old manuscript. As she begins to understand why a nation once believed in fairies, can Olivia find a way to believe in herself?