I noticed in the Toolset that there is a journal entry, "Chessentra: Ekkathys", which is supposed to provide XP as you enter the city. However, I don't believe I would have gotten this XP, as I did not have this JE when I first entered Ekkathys. I seemed to recall (and confirmed via the Toolset) that Tan would have told me the info contained in the first part of the "Chessentra: Ekkathys" entry (regarding the demon whose crown pieces you want to find), WAAAAY back as we were making plans to leave Neverwinter. However, that dialogue did not make any references to the stronghold in Ekkathys- and I have no idea who I was supposed to talk to (or what I should do) in order to receive that JE.
Moreover, I also discovered that the bartender at the inn in Ekkathys was also supposed to mention the stronghold (starting yet another JE, "Ekkathys: Baranthyr"). Alas, I did not receive that JE either.
If necessary, I can advance either journal entry (or both) so that I can at least get the proper XP for finishing the task tied to each journal entry. (While I had entered Ekkathys, I can easily reload to an earlier save, as I hadn't gone much beyond quest-collecting while in the city. I also took the opportunity to find and collect XP from the hermit in the Devil's Triangle- or whatever it's called- for presenting him with the ogre mage relic I found.) However, I would greatly appreciate any help anyone can give me as far as how I was supposed to learn about the stronghold in the first place.