Apparently, an old tree fell as the lava was cooling, so there is a giant formation sticking out of the ground. Somewhat flat on the top, the leader makes announcements there, and sleeps in a den that was made in the rock by unknown cats or twolegs. The den's floor is obsidian, but is covered in moss. The den itself is protected by the rain by a roof of obsidian, as well as some sort of vine that covers the entrance.
