Celestia has had trouble sleeping for the past couple of nights, whether it be a slight feeling of being watched, or a quiet mumbling. She tries to think nothing of it, but it quickly becomes something more when an unusual occurance in the sky causes her to think differently about the situation. Perhaps Princess Twilight Sparkle can help, but Twilight soon finds out that it will be a much more tricky situation than she first expected.

Absolutely amazing cover art done by the talented artist: Swirling Line

Swirling Line's Deviant Art --> Here