The title of Charles Allen&rsquos latest book is somewhat misleading. The book is only partially about the life of the emperor Ashoka. More than half of it is devoted to the discovery of the existence of Ashoka. Peopled by a colourful cast of Orientalists, Indologists and colonial administrators, this book is as much about the patient detective work which went into putting together the jigsaw puzzle of the life and times of the emperor.