[Added] [Map] Gerion: Hold of D'Lere

[Lemilla]

Right, my first attempt at making a map which might be suitable for sharing.

I've got no artistic talent, so I've kept it as a very basic map without colours or textures. If someone who does wants to use this as source to make a better looking map, that's fine with me.

Gerion quest hub. Large hole in the center and around the edges, where you fall into a giant fan. Most of the floor is a raster where you can look down.

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