The Drunken Lizard Pub

According to the letter you get from the heal the priests sick man quest you need to add (after removing the junk) Mercury and Ectoplasm to the alembic to activate the portal, however I found you can also add another Bromine & Ambergris to the pair already in there (again after removing the junk) to get the same effect.

Heh, interesting.

Good find- I'll put it on the ToDo pile.