Silent Kay and the Night before Christmas — Heath L. Buckmaster

The story of Silent Kay, a girl who was disturbed in the midst of her knitting by a knight who knocked at the door.

What the knight needed was something only Kay could provide - and so she did.
How the knight rewarded her was something only he could do - and so he did.
What became of Kay was the only thing that could have become of her - on that silent and still day before Christmas, so long ago.