Xerash Fireblade, located at the Lariss Pavilion, north of Camp Mojache, has what I need to get started here! He has mixed up a concoction that I need for my... well, you'll see.
Off with you now -- to Xerash. Here, take this with you. It's a shrunken head that I promised Xerash in exchange for the herbs. It's the head of some poor dwarf I ventured across in the forest. I'm sure he will be pleased.