A Melodrama With a Thick Plot
From the introduction:
The Affair of the Hidden Jewel can be played in a setting along any long stretch of road running through the forests of the Empire (or elsewhere in the Old World with some name changes). It is best to run this adventure when the player characters are travelling without any element of time pressure forcing them onwards, since they may well need to make a significant detour from their intended route.
Note the PDF is formatted "two-up" for booklet printing. The PDF has 10 pages; a printed and folded booklet would have 20 pages. This adventure optionally takes places between 1.0: Ashes of Middenheim and 2.0: Spires of Altdorf, but also can be used as a standalone adventure.