Day 648: what’s daylight?

Day 648:

I found a seam so rich I dug through the night last night and into tonight without returning home and going to bed. I’m actually tired now. Unlike when I first arrived and my body hadn’t adjusted to the short days yet, now I really feel it if the world goes dark and I don’t go dark with it.

I’ll probably be at it again tomorrow, but first I should probably take a nap.