>>26466316It's the first official meeting between Tunnelhogs and another species in a long time, it's deserving of an audience with the Overseers.
As for the tunnels, Rosebutas have access to large machines that bore main tunnels for them, although they have to power it themselves. As it bores through the earth, the Rosebutas put together large stone plates that hold the circular caverns in place. I think I wrote everything down somewhere, but I'm not sure if I ever anchored it or anything.
