An Exercise in Diplomacy

We'd been trying to negotiate with the trappers for weeks, but we'd gotten nowhere until you found that blasted chest of theirs.$B$BThis should be good news to our envoy in Silverbrook. We sent Ducal there about a week ago and his last letter indicated he'd been making little progress.$B$BGo to Silverbrook and aid him in his diplomatic efforts. Take the roads heading northwest of here and you should find it after crossing a couple of bridges.