Agatha the Banshee

Agatha's lair is a several miles outside town. The already dark forest grows darker and yet more still as the trail winds deeper into the trees. Heavy vines drape the branches, and the air is noticeably colder than it was in the ruined village. 

Agatha herself is an ancient banshee, that, if she appears at all, may trade precious objects for information, as she is an accomplished oracle/seer.