Synopsis: 
“What is it? The nightingale? I do not know it at all, and it lives in my empire!”
Enchanted by the lilting birdsong of the plain-looking, brown Nightingale, the little Emperor of China captures and keeps her in a gilded  cage for his daily entertainment. But soon, along with her freedom, the beautiful voice of the Nightingale is lost and a singing mechanical  bird replaces her. 
Will she survive her days in captivity? Will she ever fly freely again? Join the Nightingale and friends in their quest for her freedom.