I think I found part of the problem with this situation. I ran over there just a bit ago and ran into no less than twenty miniature-sized Large Black Puddings. Apparently, somebody went and had a field day with a slashing/piercing weapon then ran around like a chicken with its head cut off. They were scattered all over the zones leading toward Zeklos Keep.
I found the cave and wiped it out along with a ton of the mini ones wandering about, but there's probably more. I think we need to start some IC awareness program to the dangers of the Black Puddings.
Where they spawn:
The Variable caves in the Sullen woods
The Variable caves in the Southern Forest
The Variable caves toward Zeklos Keep (all three of them, apparently)
The long cave that connects from Vallaki to Dvergeheim
Really, I think the damage on the Puddings need to be knocked down just slightly. That'd probably help with the Pudding plague we seem to be having. The Large ones can swing for upwards of 20 damage a shot, which is pretty insane for a low-level creature.