It's nice to retire finally. Celestia has placed Equestria in the safest hooves, and now she can enjoy her rest. And help her brightest student with an advice or two in letters. However, since some time, Twilight begins to ask her former teacher not to worry.
What's that all about?

Moonshadow lives in a palace, and he is a noble pony, like his parents. But at the same time he's just an ordinary little colt, and like all little colts, he sometimes can't sleep at night, so he goes to his mom and dad's bedroom.