Greybark Adventurers' League - A Dungeon World
Once the most magnificent Greybark tree in the forest it was broken in an unknown epoch.
Now it has been hollowed out and is used to focus ritual magics. Though some smaller trees cling to the peaks, the main trunk is long dead.
There is a steep cliff all around it’s base where it’s roots are exposed and caves into it’s inner warrens are accessible.