Okay. But what doesn't make sense to me is that the Eastern most point of the underdark map is at the Western most point of the surface map. We know of the following ways into the underdark map:
The hags lair. That's a portal, so that could work. But I wonder, has anyone tried to use featherfall to jump down through the whole in the center? If that also takes you to the underdark map, that makes no sense. The bog is pretty far to the southeast of the temple, so it would be pretty far to the southeast of the underdark map.
The whispering depths. That is certainly Southeast of the Zhent hideout and almost directly east of the temple. We know that the whispering depth runs north and south, not east and west, because just to the right of the spiders lair you can access the blacksmith shop. So there's no way that the whispering deaths stretches from the Village past the temple. But if you jump down, it just shows you gliding down into the underdark map. It doesn't show you gliding down to some place and making your way along a distance and then dropping down further etc.
The Zhent hideout? If this leads down to that secret stash, it might work, but it's a bit of a stretch also. The inn is north of the village and the temple, and The hideout entrance is west of there, but only a short ways. The underground hideout is somewhat large, so it could stretch West too that secret stash location which is north of the Temple. So I could buy that one. That actually is probably the most believable one.
Grymforge. The only way that we know of to get there is via the lift which goes up to the cursed lands. You can't travel through the cursed lands without the special lanterns.
The ruined Temple. This way it has been sealed off for 120 years.
So how is everybody getting into this difficult to get into underdark location? How does Barcus? You rescue him from the windmill, and somehow he's down there with the rest of the gnomes. Which way did he take to get in there? Why couldn't we take that way? How did the dwarf merchant get down there? How did the Hobgoblin and mind flayer get down there?
And if the gnomes settled on the shore in that decrepit Village, wouldn't they have had to pass the forge crossing by the lake just to get there? If the forge was their destination, why would they set up a village on the far shore?
See, I think the problem I'm having is that it seems like everybody else has a easy way into the underdark except you the player. It's like all these other people are able to just waltz down there and hang out and explore around and then return to the surface without a problem, but you don't really have that luxury. Oh, and by the way, neither did Aradin and his companions.
