Mary Renault brought the world of Plato, Theseus and Socrates to a new generation, just as conventional study of the classics reached a nadir of irrelevance in the 1950s. Without her, we might have lost touch with the roots of our civilization. How did she do it? With contributions from film director Oliver Stone, TV historian Bettany Hughes and broadcaster Sue MacGregor, a personal friend of Renault's.