From publisher blurb:
This is a short encounter set that is systemless and scalable for about any level of PCs in any OSR-style game. The design is deliberately vague in several areas to make it easy to "tweak & toss" into your current campaign. Perfect for when the party goes "left" when you expected them to go "right", any GM/DM/Judge can easily drop this into the current campaign.
It is intended to print this file two-sided and fold in half, zine-style. This PDF download consists of three pages of content (map, encountes, and basic set-up). There are a couple of hotlinks within the file taking you to some additional resources, one of which is the Patreon site where you can download better versions of the maps if you so desire.