MonsterEnvy
Legend
Wizards has updated their info on Rage of Demons. Now with profiles for the Demon Lords and plot details
http://dnd.wizards.com/dungeons-and-dragons/story
http://dnd.wizards.com/dungeons-and-dragons/story
Hard to believe these powerful beings are all on one planet, all underground, all in one small area. These are rulers of planes......not just demons.
If they were that close, they would be fighting, and the world would truly be in peril. Every high level organization would be there instantly.
It sounds extremely original to me. Never seen anything quite like it. I imagine it would play out like a horror movie. The worst thing you USED to meet in the Underdark was a mindflayer. Here, you open a door and demogorgon tears you in half then eats the others.