The party enter Vash Ossai with the aid of the Rattenvanger crime syndicate of Cameri. There they discover the Anima, the godlike intelligence formed of countless souls harvested by the necromantic engines over the centuries of their operation, and are attacked by the fanatical cultists of the Carmine Pillar, who seek to enter the ruins for their own purposes. They venture deeper with the help of the drow agent Zyltheas, who has been hired along with another party of adventurers to retrieve the vessel of the Anima for Zephon Runebrand, emissary of Tzim Tevash. In the depths they find a neverending war between the undead army of the lich Ambrosius, and the necromantic soldiers of Vash Ossai, all perpetually reanimating as the necromantic miasma continues to leak into the city. They enter the royal palace, and eventually free the deathless magician Azishemu, who has been trapped in the ruins for almost two millenia - though in doing so, they inadvertantly weaken the wardstorm protecting Tchokayahattak.