This is from the children’s book "The Emperor’s Panda". It is the tale of a handsome young flute player called Kung, who goes in search of his uncle who has been kidnapped by three evil sorcerers. Along the way, he meets the magic Panda from the secret bamboo forest, and a beautiful princess, Li Su, and with their help, Kung manages to rescue his uncle and save the world from the evil sorcerers. In doing so, he wins the heart and the hand of the lovely Li Su.