Map Challenge - Domes of the Serpentfolk

Okay, so here's a map in response to Erik Tenkar's challenge. Everyone is supposed to post some maps. So ... this is my original draft for the map of the Domes of the Serpentfolk, appearing in Cyclopean Deeps vol. 1, Chapter 5. The version that actually shows up in the book is Robert Altbauer's rendition of this draft.

The idea of the thin stone wall between the domes, filled with secret corridors of different serpent-folk societies developed while I was drafting the map. It originally just has three domes in a big cavern, and that was kind of boring, so I worked with it until I stumbled on the idea of having not only 2 caverns (that was idea #1), but to have the wall be thick and filled with rooms (that was idea #2). I'm pretty happy with the result.