"Twinkle, twinkle, little star." That's what her mother, Mooncat, sang to her. But Nightsky, the "little star," didn't just twinkle. She glittered. She was beautiful. So beautiful, she made Fruitcat jealous. Too beautiful. She made all other Celestial Cats jealous. She was exiled to the sky with her mother, Mooncat. Now whenever Daybird and Suncat fall asleep, she and Mooncat stretch their wings over the sky.