This something i made when i was very bored. It simply adds an empty dwemer basement in the basement of the abandoned stronghold Gash Murug. (a basement in a basement. °-° inception)

Just put it below the other mod in your load order and you should be fine.
I have no intention on expanding on this but do feel free to do whatever you want with the part that i modified.
As long as you keep it here on the nexus. This is what Kagreesh wanted and i cannot change that.
Also this mod is based on the one without the follower.

Anyway have fun with whatever you use it for.