After going through the Glacial Ruins and all of its sub-sections, I reached the end with the big mechanical "boss" in the Cathedral area. After defeating him, I looted him for the key that gets you out of the dungeon, but I noticed there is some sort of Dwemer mechanism that can be activated for some purpose. I keep getting a message that I don't have the right device. Just wondering if it was something I missed inside, or if I may end up finding it elsewhere in Skyrim. Did anyone manage to unlock it?