What is the purpose of chain link near Nazir in Dawnstar sanctuary near torture victim?
Behind Nazir there is a chain link that we can operate. What does it do?
Solution 1:
Easy to find out, with some Googling.
It lowers some spikes that blocked a quick end to the Cicero chase quest
It just pulls down a spike wall, that's it. Would be at the top of the staircase, across from the alchemy corner.
https://en.uesp.net/wiki/Skyrim_talk:Dawnstar_Sanctuary#Pull_Chain
http://www.gamesas.com/question-about-the-dawnstar-sanctuary-t230766.html