This is a 10th Legion tower located in the northern hills above Stonebridge, watching over the town and providing a residence/stronghold for 10th Legion troops in the area. The tower fell to the Krug horde after their surprise attacks on Glitterdelve and Stonebridge, one of the survivors being its quartermaster Ordus. He tasked Lady Montbarron and her band of warriors to reclaim the tower and its armory, which held his own magical handaxe.
The tower is of average height for Legion towers, and like many others has an elevator that leads down to a basement, where soldiers trained and stored equipment. Ordus' axe is found in the basement.