What if your science experiments were so interesting that even an Emperor wanted to know more? In 1806, scientist Ernst Chladni left Germany for a three-year road trip, entertaining Europeans with his science. He made wires, columns of air, and solids vibrate. He wrote about this in his native German language, but his French scientist friends wanted to read about it in French. How could he get the cash he needed to write his new book? In February, 1809, Chladni's friends took him to the Tuliere Palace. This elementary science picture book dramatizes the exciting meeting between a German scientist and French Emperor Napoleon Bonaparte.