Day 620: losing it

Day 620:

If I wasn’t already pretty confident that this was all a fever dream I’d swear I’m losing my mind.

I’m standing in a chamber just under the surface, where it’s safe from monsters but where I can dig the occasional skylight to get actual healthy light in here.

And I could swear I hear a mine cart rolling underground.

But the mine carts I built are dozens of meters away… and besides, I’d feel their vibrations to one side or the other, not below.

So I’ve added a mission to my chamber clean-up work: see if I can figure out what’s causing that odd vibration. Because that’s just creepy.