Whispering Threshold is a plugin to create 'trigger areas', in which staff members will be notified, both in-game and through Discord, when a player enters.
This allows them to jump to the location and play a relevant character - such as a shopkeeper, or perhaps a ranger camping nearby, or maybe a dungeoneer.
The end result should be a world that feels alive with living characters that are played on-demand, while players are oblivious to how the strings are being pulled.