The Science Of DiscworldBy: Terry Pratchett, Ian Stewart, Jack Cohen The fantastic first book in the Sunday Times bestselling Science of Discworld series When a wizardly experiment goes adrift, the wizards of Unseen University find themselves with a pocket universe on their hands: Roundworld, where neither magic nor common sense seems to stand a chance against logic. The Universe, of course, is our own. And Roundworld is Earth. As the wizards watch their accidental creation