Untold Story is a novel by Monica Ali, her fourth after two novels and a collection of short stories. It asks what would have happened if Princess Diana had not died in a car accident in Paris in 1997 but had arranged for her own disappearance and tried to live an undiscovered life in a small American town. In the novel, Princess Diana is portrayed in fictional form as an English expat named Lydia. The story is told through a combination of third person narrative, diary entries of the princess's former personal secretary, Lawrence Standing, and letters written by Lydia.