For the "Astronomy" challenge.

Green and gold, red and violet , the colors rippled and shimmered in the night sky. It seemed as though there should have been music, but there was only the soft sigh of the wind, and Lothíriel’s amazed gasp.

“What are those lights?” she whispered.

“ ‘Tis said that a great fire-fox, far to the north, flings the snow with his tail until the sparks fly up to the sky,” murmured Éomer. “ ‘Tis also said that children conceived under those lights are particularly blessed.”

Laughing, she turned. “Well then, Éomer Éadig, we should not pass up such an opportunity.”