The 2000 Year Epic Campaign
Merrshaulk is a spirit naga who has lived in a set of ruins in the Aradesh Desert that predates the 1st era. She has led a fairly dormant life, living near the Aradesh Pillar eons ago, would occasionally bring people directly to her, but no one has traveled through them for quite a long time. Then, a few hundred years ago the Emerald Viper Clan resettled around the Serpent River, not far from the ruins, in the village of Sahjar.
Eventually they wandered into the ruins and they came face to face with the naga. By sparing their lives Merrshaulk learned that they had an affinity for snakes, which was something she could use to her advantage. It was easy to sway them into being followers, with promises of glory, gold, and transcending into a greater form of life. They renamed the ruins, the Mausoleum of Merrshaulk.
First she needed unusual supplies to transform the humans into yuan-ti. She had them scour the desert and the nearby Kainin Mountains for rare ingredients. This took them the better half of a century. The most difficult thing to come by was fresh human sacrifices. Merrshaulk and the current leader of the Emerald Vipers, Adder Karai, devised plans to capture travelers as they came to Sahjar, for their devious plans. Recently they came across a wandering band of orcs. These vile creatures were unsuitable for sacrifice, but Adder Karai convinced Merrshaulk to keep them, as they may prove useful.
Session #5 (2nd Era) – The Champions of Elon were subject to Adder Karai’s lies and entered the Mausoleum of Merrshaulk to clear out the orcs and undead and unpower the Aradesh Pillar. The champions killed her, for now, and drove off or killed the rest of the Emerald Viper clan. They also removed the Jewel of the Pillar from the ruins.
Transition from 2nd to 3rd Era – While Merrshaulk was temporarily dead, the Emerald Viper Clan was no longer under her control. Later they reformed and became the Emerald Circle, sworn to exact revenge against her. Needing followers, Merrshaulk sought out someone to fit that bill, and the Followers of the Scourge heeded the call. They serve her to this day and helped repel two attacks by the Emerald Circle in the Mausoleum of Merrshaulk.