First of all, I want to know if anybody else has found this bizarre place, and second of all, does anybody know how to return here via the coc command as I don't know the room’s cell name?
I got there trying to fix the fact that I took the Amulet of Talos off of Roggvir's body before getting the quest from his family to do so. I was able to finish the quest by returning an amulet to the family, but can't get the "talk to Greta" entry out of my journal. I tried every hint and tip I could find, reset the quest I don't know how many times trying to work it out, thing was when I'd get to the point about finding Roggvir's body in the Hall of the Dead, that was impossible because his body wasn't there. I thought I must just be missing something incredibly obvious so I used
moveto to place me at his location and that room you found is where his body was. Without any head on it, I might add. *shudder*
Malborn was also there, in a loincloth but very much alive. The rest of the space was littered with dead bodies in skivvies.
On trying to escape the room I found that walking out the end of any hallway where the floor disappeared made me just "fall" right back into the room again. I could not fast travel from that location. Got out of there by using
coc solitudebluepalace which was just the first location I thought of in Solitude. Couldn't tell you how to get back there via console with
coc but if Roggvir's dead in your game you could try the moveto with his ID to see if it puts you there. Although if you haven't taken the amulet from him yet he may not be there, I dunno.