Work is extremely insane this time of year for me. From what I understand it wasn't that bad before the internet but now with everyone ordering online working in a shipping service can be a bit crazy. Haven't had much time of late for much, but I hope this one find everyone well ...
Hit Dice: 6
Armor Class: 3 
Attacks: Bash (4d6)
Saving Throw: 11
Special: Non-magic weapons do half damage. See Below
Challenge Level/XP: 11/1,700
The Crawling Madness is a semi-sentient creature of the Outside, which resembles a mass of mangled cancerous bodies fused into the shell of a giant slug which itself appears to be a raw, oozing tumor full of tufts of hair, gnashing teeth and glistening blisters and boils.
The “shell” of the Crawling Madness moves and writhes, eyes bulge and fade back into the massive of melded bodies and oddly, every so often, the forms of coupling can be seen from the figures of the “shell”.
The sight of the Crawling Madness is enough to make anyone go insane, the soft wet sounds it makes as it moves and fight do not help in this either. For every round the player is within visual distance of the Crawling Madness they must succeed a will based saving through with a growing negative depending on what round they are in. Should the player fail this save he or she loses 2 points of their Wisdom score. If a wisdom score falls below 3 the player is permanently insane and becomes an NPC.
Any player that comes into physical contact with the Crawling Madness has a 1 in 3 chance of becoming melded to the creature. If the player is unable to free him or herself within five rounds of first becoming melded to the Crawling Madness he or she becomes a permanent part of the creature’s “shell”.