Day 81:
Hot day today so I went back underground, where I’m happy.
Found yet another vein of granite and diorite, this time a bit off the last one. They’re getting deeper, which means the temperature is actually starting to climb a bit. Still damp as anything though.
I’ve thought about starting fires underground to dry things out a bit, but one never knows when one might accidentally set a coal seam on fire, and that’s no good.
I’ve also thought about bringing one of the duckens down here on purpose to act as canaries. Make sure the air’s good. That kind of thing. That might be easier than the fires.