 The chronicle is intended by Dee to serve as a case study within his history of insurance.But by the end of the book, a personal narrative has emerged from Dee's impersonal history, the story of a man's friendship with a boy soprano.Interpenetrating and linking the inner text by Nicholas Dee and the outer one by Matthew Stadler are snatches of music - extracts from the score of "The Tempest", Henry Purcell's operatic setting of Shakespeare's play.