It is early 1956 and the British Empire is crumbling. But for nine-year-old Ella, living with her parents at the British High Commission in Peshawar, Pakistan, the walls of class, snobbery and racism are still intact. Growing up is a lonely, painful experience, and Ella withdraws, recording the hypocrisy of adult behaviour in her diary, A History of Insects, where she hides a secret that could shatter the lives of the people around her.