It tells a legendary story about treasure, loyalty and commitment, and it is also a touching story of two trumpeters who lived in different centuries. /kloc-in the 3rd century, the enemy invaded Krakow, Poland. There was a trumpeter in the city who kept his promise and blew a sacred hyena every hour. Two centuries later, the boy Yue Se and his family came to this city and lived in the downstairs of an alchemist. Yue Se's father got the position of trumpeter. Yue Se is deeply in love with this ancient and beautiful city. He didn't know that his family was involved in an evil plot because of a treasure that constantly caused disputes-Tarnoff's big crystal ball, and fell into a battle with the ferocious Tatar thieves, alchemists, hypnotists and the devil's dark messenger. Once the crystal ball is taken away, disaster will surely come again. Who will answer Yue Se's horn at this critical moment? Where will this crystal ball with evil power eventually go? Brave little Yue Se kept his promise to the ancient oath and decided to protect this rare treasure no matter what the cost! This story full of positive energy is very infectious.