Nightingale’s official job may be as Luna’s factotum, but his skills have never been limited to serving wine and greeting guests. Princess Luna sometimes finds cause for Nightingale to visit another country, and it sometimes transpires that when he returns, he has guests. One must always help out a neighbour, after all, even if that help is not strictly legal. Of course, having founded the Motuvore–an underground railroad dedicated to finding homes for peaceful Changelings–Nightingale has never been overly concerned with legality.