Karls and Scents (2007)

From the introduction:

Karls and Scents is an adventure for 3-5 characters, preferably ones on their second careers, though clever and lucky players in their first careers could still do quite well. It starts off in the southwest corner of the Empire, where the Grey and Black Mountains collide, and dangerous passes lead the foolhardy and ambitious into dangerous foreign lands. It begins in and around the township of Kreutzhofen and leads the party north through the valleys of Wissenland to a climax in Nuln. It involves merchants, nobility and, of course, the Dark Powers. It also has a light, musky scent, with a hint of spice and a caress of violets.