Answer:
Hold the tail, while I fish for you.
What do you fill with empty hands?
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
This thing all things devours: Birds, beasts, trees, flowers; Gnaws iron, bites steel; Grinds hard stones to meal; Slays king, ruins town, And beats high mountains down.
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
What covers its face with its hands, speaks no language, yet most known what it's saying?