Upon the Northern Isthmus: somewhere deep in the woods there is a hole in the ground, and so far neither man nor magician knows what lies below.
The first adventure for the upon the northern isthmus campaign setting has been released. I don't post about it much but it does exist a quite extensively in my brain. You can find it as a free blogpost on my itch.io with downloads of a pdf version being available for purchase. https://500poundsofnothing.itch.io/whatliesbelow