Few people know that, if you wake in the middle of the night-- between a "tick" and "tock" on the clock- the Moon will invite you on a magical adventure. You'll be whisked upward through the night sky, and you will find a fellow they call the "Night Sweeper." It's the Night Sweeper's job to sweep away all the stardust that falls from the heavens and to make sure all the roofs are clean by sunrise.