Answer:
Steals an event or even a mood. Reveals the truth or shatters it.
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
At the sound of me, one may dream or stamp their feet, At the sound of me, one may laugh or sometimes weep.
What does everyone know how to open but not how to close?
People take me on walks and I run and have fun. What am I?