Pure Wit'Puts Cavendish back into the literary history books where she belongs' Kate Mosse 'Scholarly, articulate, and never less than fascinating' Alice Loxton 'Well written, well researched, interesting and peppy.' Observer A biography of the remarkable, and in her time scandalous, seventeenth century writer Margaret Cavendish, Duchess of Newcastle. My ambition is not only to be Empress, but Authoress of a whole world. Margaret Cavendish, then Lucas, was