I have learned more of the Lord of Filth, and think this should be brought to your attention. Earlier this day a tiger cub was roaming Myth Drannor foaming at the mouth and attacking people. I captured the poor animal and with a keepers help we were able to cure the infected people, but the animal itself was tainted with some demonic sickness. After some further investigation I was informed that Shadowdale and the Underdark were also being similarly attacked. I learned that the Lord of Filth was most likely behind the attacks. I further discovered that the Lord is in fact Maladomini, the Son of Baalzebul, the Lord of the Seventh layer of the Nine Hells. The Son is attempting to overthrow his Father and take over the Layer and is spreading taint here in a bid to gather tools to use as slaves in his War.
I will update you further as more information is uncovered.
Valtore Ironhouse