I have the Elder Scroll... it tells me I need to do something with a lexicon and keeps pointing me back to Blackreach. I've been through that place three times, and I don't see what I'm supposed to do to get the Lexicon.

What do I do with the Elder Scroll now?

What quest are you on?

The Elder Scroll is needed for the main quest. The Lexicon is related to the Discerning the Transmundane quest.

If you already took the Elder Scroll but haven't done anything with the Lexicon, I'm not sure you can complete the Discerning the Transmundane quest now, because you were supposed to put the Lexicon on a pedestal in the room where you found the Elder Scroll and then push some buttons to put the Elder Scroll's knowledge into the Lexicon...now that the Scroll is no longer in its place where you found it, I'm not sure it will work.

when you got the elderscroll did you take the lexicon back from the holder? It should be named runed lexicon now, give that back to whats his face who gave it to you. His is a seperate quest from the one where you need it to open the time wound.

AHHHH, so I need to get that cube back? Interesting. I did get the Scroll written on.... did that machine thing and then the scroll came out like it was supposed to. I'll go back there AGAIN to see if I can get that cube back. It is the cube, right? Thanks!