Nobody fired their guns and they all joined Napoleon in his march to Paris to reclaim his throne. Along the way they all chanted: "Long live the Emperor." The King got scared and left Paris.
Napoleon retook his throne, but Great Britain and Prussia teamed up against Napoleon at the Battle of Waterloo. They outnumbered him 700,000 to 250,000. Napoleon was defeated and surrendered again. He was exiled to the island of St. Helena, was poisoned and died.