Answer:
I question what lies above, and Iām shared with those you love. At my sound your hands will shake, and oft heard soon after wake. A card not found in a deck.
What hangs in the sky by day but at night goes away?
You do this into someone's ear when you want to be discreet.
They are the group who manages the winged engines of war.
It is a form of plastic money.
It is something you will never see again.