Mila
When Mila arrived in the area where the cave was supposed to be, the situation was quite a bit different than she'd expected.
The land for kilometers around was flat, just plains and forests, with very little even in the way of hills, and the cave entrance was in the middle of a forest. From what she'd learned from the beastmen she'd questioned, the rebels hadn't built much infrastructure around it before the integration, hoping to keep it hidden, but that was now old news.
After the integration, it seemed a large portion of the rebels had moved to the area, dragging a whole lot of other natives along, and built a small fortress around the entrance. But they hadn't lasted very long as four different invasion forces had come to the area a few weeks later and worked together to destroy the rebels and take over the entire region, the four forces now each with a base around the entrance to the inheritance.