There is a keyed door, and it's very wide is why the Illusion is probably not working. But for the Wanderlust, you don't need the key or to go through to the inner Vergalid. Also, you don't need to uninvis to hail the NPC (died the first time I did it, because of that :D ... lots of aggro mobs around, NPC may aggro too, can't remember for sure) Map file spots:
P 738.7184, -221.1007, -296.8096, 240, 0, 240, 3, Inquirer_Galstat
P 1520, 305, -200, 240, 0, 240, 3, Flooded_Caves
P 1270, -900, -300, 240, 0, 240, 3, Burial_Chamber
P 1515, -900, -300, 240, 0, 240, 3, Shrine_of_Zek
All but the Flooded Cave is left from the elevator (as you're exiting it), and the first left again. The flooded caves are to the right off the lift. The Shrine of Zek is close to the door for Inner Vergalid.
Here's the quest about the key, if you're interested:
https://everquest.allakhazam.com/db/quest.html?quest=3707 Yther Ore.
Edited, Dec 4th 2009 11:16pm by Yther