Discworld is a magical realm quite unlike, yet hauntingly familiar to, Earth, and it finally has it's first tourist. Rincewind is an inept ex-student wizard who is given the task of guiding Twoflower through the city-state of Ankh Morpork. But unfortunately Rincewind has two problems. First, he is an expert coward and he doesn't feel that he is the best person to guard a naive, and extremely rich, tourist through one of the roughest cities in the multiverse. Secondly, the world is coming to an end. What they come to learn is that they have become part of an elaborate board game being played by the gods...