The Sparrow is a beautiful tale of freedom. It teaches you about how captivity can be more dangerous than anything, where even the things you love feel like a chore.
When a little bird with a beautiful voice is captive for her most prized possession - her voice, she begins to lose it. Eventually, she is left with no purpose or happiness left.
From here, she makes things turn for her and proves that when freedom is involved, all things are better. The story does end happily, but it's worth finding out how!