SureAI

I went to the dig site in the north and found the first tablet, but then my quest updated to say I had found a tablet and removed all map markers. I fortunately remembered the second tablet was in the storage annex in treomar and found it, but my quest did not update. Am I missing something or has my quest not told me where to find the third? If it helps, I've browsed around these forums and know I'm supposed to ride a glider to get to the third, and have gone to the treomar beacon site with a dwarven looking glider at the top, but I can't interact with it.\
Edit: I forgot to pick up the note in the storage annex telling me about the slider after a reload, that fixed it.

The way I got the tablets was first at the storage annex in Treomar, then at the tower via the glider, and finally at the lava fields in the north. Not sure why you started with the lava fields first, since the start of the quest should have directed you to go to Treomar first. It could be you messed up the sequence for this quest.