Day 282:
While cleaning up this chamber, I discovered a staircase coming down from the eastern side, which leads up to a chamber I dug, well, probably months ago now.
So the good news is that somewhere I thought “hey I should explore this later” has now been explored.
The bad news is that there’s probably not much down here if I’ve already been here before.
On the other hand, I already found one diamond deposit that I’d missed, so if it means having nice square chambers and a clean floor and no stalactites stabbing at me, I think finishing what I’ve started is worthwhile.