Thermal Fortress

Summary
The Thermal Fortress is a long-lost, recently-found fortress near Highwall Peak and the Pillar. It is more a ruin than an actual fortress, and it looks like it has sunk halfway into the ground.

What makes the Thermal Fortress special is inside. It was built on a thermal vent, and has complex, steam-powered machinery running around it, including a system of floating elevators. The systems inside of it are complex, but anyone with proper understanding of the machinist theories compiled by Master Thorunn can understand them and, for example, almost like fly around the fortress on the elevators.

The Fortress was acquired by Yong Lin from a bandit tribe led by brothers Hubert and Waldemar. Hubert has been shipped off to Greybark jail, but Waldemar is still at large somewhere in the forest. Yong Lin welcomes adventurers to rest in her fortress when adventuring in the area, and hired a lot of the bandits' old slaves as proper servants. The Fortress is a nice place to visit.