'This was the slaying of the Minotaur, which put an end forever to the shameful tribute of seven youths and seven maidens which was exacted from the Athenians every nine years.' The gods, heroes and legends of Greek mythology and their Roman interpretations are as fascinating as they are instructive. They include the almighty Zeus and his many wives; heroic Perseus, slayer of the snake-headed Medusa; Helen of Troy, whose beauty caused a great war;...