im stuck in Moonrise Towers

[Suggin]

So I've cleared out and killed pretty much everything in moonrise towers, except Ketheric Thorm. He is invincible. Apparently he's protected by something called the Nightsong, and while I've heard it be mentioned before back in Act 1, I do not know what it even is or how to find it. I've been looking everywhere, including the Oubliette, and I even had that cutscene where ur talking to the Absolute, and it dropped me down into the Oubliette, which I had already explored before but nothing changes. Am I missing something here? Where do I go? What do I do?

[KocLobster]

I found the order of quests surrounding this confusing too. If you've already rescued all the prisoners, you're ready to go to the NW part of the map, the Mausoleum or whatever its called. You need to find the Nightsong to make Thorm killable, before heading back to Moonrise.

The Oubliette is basically a dead end until later, after the above.

[Mork]

You need to go to the Grand Mausoleum and its north of the tower.

[Suggin]

Oh ok thank you. I did read something about the Thorm's Mausoleum, but i wasn't sure where it was at, or if it was even necessary to travel to. I guess I'll go off hunting into the Shadow-cursed Lands once more!