30. The Vloxen Excavations dungeon is passed through as part of The Knowledgeable Asura quest. Thus, it can be accessed from two outposts. One is Vlox's Falls. What is the other?
From Quiz Ten of My Favourite Dungeons
Answer:
Umbral Grotto
Stone Summit, Skelks, Spiders, oh my! This dungeon has it all - parasitic plants, ominous oozes, and more Stone Summit than you can poke a staff at. That said, the boss of the dungeon is Zoldark the Unholy, an undead guy who prefers to let his minions do the fighting for him rather than get his hands dirty. And this, ladies and gentlemen, will be his downfall. For every Minion of Zoldark your party kills, Zoldark himself will resurrect it, sacrificing 5% of his health in the process. The key to beating Zoldark is killing his minions repeatedly, so he repeatedly resurrects them and repeatedly sacrifices health. Eventually, he'll give up and focus on fighting your party instead, which shouldn't be difficult, as he would have very little health at this point.