Venemetic

I have the other ingredients for the emetic here. The last ingredient I need is some venom to trigger a response. I overheard the trolls talk about a place just to the north called the Serpent's Tail. They say it's chock-full of venomous baddies, but we only need the poison from the Children of Ula'tek. They say there are even rivers full of the caustic stuff, but don't go swimming in them. They're too concentrated and will eat right through the collection bottle before you can scream, "I'm melting!"