Find the lost passage lord Brian quest

I have looked for the dead end at the north with the crack that has parchment in it. I just don’t see it. Any help will be appreciated.

Go as far north there as you can and hit the crack on the wall to your right. It's hard to see the crack on the red, brick wall but it's there.

Got it! Thanks so much!

Tap tap, no dice. Did you move it?

No. It's still there. It's on the northeast wall. If you need a pic, let me know. I'll have to put it up on my website as it's hard to put it up here.