The Harpers are a secret network of magic spies who champion the downtrodden and wage war against tyrants. According to rumor, many of their number are bards, minstrels, actors, musicians, and other performers—which means that in any theater at any given time, there may be a Harper among the cast.
The actor Yaliek Iltizmar, who specializes in playing romantic blackguards and evil princes, has a theory that the surest way to spot a Harper in a theater is to see who's ordering a Night Watch at the aftershow. Harpers are known for their nocturnal vigilance, after all, and this coffee-forward cocktail is a favorite for anyone who wants to stay awake through the night. Yaliek says she always has one eye open to spot which of her fellow performers might be a Harper. Yaliek also often has a Night Watch in hand because, she says, she just likes the taste.