Answer:
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground. It holds pale gems of blue.
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
What measures out time until in time all is smashed to it?
What is so fragile that saying its name breaks it?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?