"Well, we have Companions – those are the white horses you must've seen around, outside. The first King of Valdemar was a refugee from an Empire that was a very bad place at the time, might still be for all I know, and he tried to make everything different, but I guess he was worried that at some point one of his descendants would be corrupt or rule badly. So he prayed to every single god whose name he knew for a miracle."
She frowns. "They don't answer prayers like that often, but they did this time. The Companions are intelligent – and also telepathic, actually – and they go out and find youngsters with, er, good hearts and leadership potential. Generally magical Gifts as well. Anyone Chosen by a Companion is called a Herald and we wear white. The monarch is always a Herald, and there's about a hundred of the rest of us."
She pauses, and her words become a little rote. "We play a lot of roles. Messengers, spies, information-gatherers, judges, peace-keepers… Most Heralds spend their time on circuit within some area of the Kingdom, riding around resolving legal disputes, supporting the Guard, and acting as representatives of the Crown. If there’s a war, we fight. Our Companions are meant to ensure that we don't become corrupt, and to act as a visible sign to everyone else that we're trustworthy." She shrugs. "Most Heralds are – trustworthy enough, I mean – and most citizens of Valdemar do trust us. But we're not perfect. Occasionally we can be imperfect in ways a lot worse than petty gossip."