The Colour of Magic, the first novel in Terry Pratchett's wildly imaginative Discworld series, takes the listener on a remarkable journey. The magical planet of Discworld is supported by four massive elephants who stand on the back of the Great A'Tuin, a giant turtle swimming slowly through the mysterious interstellar gulf. The adventure begins when an eccentric expedition sets out to explore the planet. The group, including an ineffective wizard and a naïve tourist whose luggage moves on its own little legs, encounters dragons who only exist if you believe in them, and of course "The Edge" of the planet.