So I'll be running an adventure next weekend for my local RPG.net bunch (BosTan's Pandemonium Games Day
at Pandemonium Games in Boson - come down and play!) and I'm looking for some help.
My game's set in the Iron Kingdoms. The plot is that the players have stumbled across a rash of food poisonings in a city by the bay, which is going to end up being the run-off from a cultist's necromantic experimentation. I wanted to toss an additional and possibly literal red herring in to maybe throw the players for a loop, but I can't seem to find a monster to do the trick.
The monster I'm looking for doesn't have to be a fish, per se, but has to be in aquatic in some form and poisonous. I have the Monster Manual for 3.5 and the Monsternomicon for IK, but I haven't come across anything that fit the bill. Any suggestions?