From publisher blurb:
This is an Adventure Tie-In (ie. "hook") for an upcoming pair of short "Tweak & Toss" Encounter Sets. The hook can be set for your own adventure, in conjunction with one or both of the Encounter Sets, or all on its own. An enterprising GM can tweak this hook to form a mini-adventure all on its own!
The Tweak & Toss Encounter Set is a map paired with systemless (OSR) suggested encounter areas. 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, encounter, and basic set-up). There are a couple of hotlinks within the file taking you to the Frugal GM blog where you can download a hi-res version of the map if you so desire.