I've been wondering if there's a way to get back into the attributes chamber in the Twilight Sepulcher, you know the chamber where you speak to Nocturnal?
Recently I've been trying to switch my Nightingale power, because I picked the wrong one (there was no way to tell which area gave you which power and Karliah doesn’t mention what area gives you which power after that). Karliah mentioned that I could return to the Sepulcher but when I've come back all that the portal leads me to is the well area that you need to put the Skeleton Key into. I've tried going through all 3 of the portals but they just send me out (weird that there would be 3 that's a bit unnecessary to have 3 that lead to the same place). I've also tried to activate the key lock but there's nothing to activate.
I'm at a loss, I've tried searching for the skeleton key again to use it on the lock but I'm not sure where it could be (most likely in the Sepulcher). I'm not exactly sure what to do in this situation. I've tried looking up how to on Youtube but there's nothing on it.

Reported for spoilers.

It's ok to post spoilers in the spoilers board. If I remember right, there's symbols in the floor you need to activate. It isn't the portals themselves.

Oh and they will do nothing if it hasn't been 24 hours since you chose.

It got moved from general discussion.

I didn't think it would technically be a spolier since it's about what happends after the quest not the quest itself. but at least the thread is where it belongs now I guess

Um what happens after is what they don't want spoiled. You really couldn't figure that out?

You should be able to go through a portle in the main chamber. Other than that you will have to remember which place is which, due to it currently not showing up.

@ Federally:

Ever hear of "Treat others how you wish to be treated.", or "If you don't have anything nice to say, don't say anything at all."? Really works out well for a majority of society, you couldn't figure that out? Hopefully you get the point.

if that's the case then technically over half of the discussions in General discussion would be in spoilers. because they deal with what happens after a quest or even the game smart one