October, 1806: Zeitz, SaxonyThe commander of Napoleon's cavalry, Marshal Joachim Murat, found his staff interrogating the postmaster, minister, and mayor. A spy came forward with the critical piece of information they sought—the Prussian and Saxon armies lay to the west and north. This was put into a dispatch by an officer sitting outside the beer hall. A horse was brought for the spy who went with the dispatch to Napoleon's headquarters, 20 miles away. The whole army would soon make a sweeping left turn.