How do I lower the drawbridge in Geirmund's Hall?
In Geirmund's hall, there is a point where I'm at a drawbridge that I can't lower. A nearby switch triggers the traps that pop out of the wall, and I can see the two beady eyes of the wight waiting for me once I get the bridge down. How do I do so?
There doesn't seem to be any of the obvious bird-fish-snake puzzles nearby.
Here is the screenshot of the location:
look on the wall right behind the lever that shoots the spikes. There's another lever. It's kinda hidden facing the draw bridge.