Answer:
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own.
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
I am the hole in the night, the ever watchful eye. I return in a cycle, to enlighten the sky.
Brings the sky a lot closer.