The message is pre recorded and has come from the central office of the polity itself. The message is short. The Monarchy has noticed the role creators play in shaping the information-sphere to come, and has recognized that this era of post-scream redevelopment will be the building blocks for the culture that is emerging in the wake of the universal calamity.
A trade road, a massive engineering project taken by all the great houses and many lesser ones has recently been completed, stretching from the Glittering City, winding through the mountains, and then crossing the great central plains for several hundred kilometers, before finally ending at the Coastal Semi Autonomous Zone. Watchtowers, Roadhouses, outposts, and the first of a few small settlements have popped up long this route, and the Monarchy is hoping that videos, travel blogs,and other electronic media made about the various landmarks there will encourage more people to use it, and possibly might even attract attention from off world for further investment.
As a small creator, you're being offered an opportunity to travel this route - transportation will be provided for the journey, so long as your travels are documented, interviews with locals are conducted, and any interesting discoveries are passed onto the Monarchy. To opt in, a short message just needs to be sent back. If accepted, a flyer will be sent to bring you to whichever end you choose to start from.
In the other room, the water begins to run so it will be warm by time you are ready to use it.