Rifts - Pathway to Oblivion
Nrii and the Cult of Doom
Nrii is the creature who escaped from the FSK complex when the group attempted to stop him. After leaving he started drawing non humanoid creatures to him in the area and developed a cult of doom linked to the destruction that Mechanoids would bring to the humanoids of earth.
His cult then murdered the town of Teribithia, and the group tracked a selection of harpies to the ruins of a condo complex in the area. In the basement they found a large group of murdered gnolls as some of the harpies escaped.
Nrii is still out there, a potential danger, in fact Damien is convinced he is one of the demons from the shared Psychic Vision.