Dark Lizerd

Here's an idea... We all know the backstory of how the demon was imprisoned that ruled over the caves when the first ones were exiled there... Can't play the First Expedition, (they were all killed), but perhaps the first Avernites... A time when most of the caves were still dark, and only a few towns around the portal existed. You could be an explorer, and, after a short time, be given a quest to deliver glowing fungus to the nearby towns. Even be part of the groups that shoot the fungus to the top of the caves to later, light them up. Plant the forests, and wild mushroom fields. even cleaning out the wild poisonous mushrooms. At the end, you could be teamed up with the Triad to trap the demon...