This one is called The Dwarven Delve, and it features the free map (Map060) from last week. This Tweak & Toss is larger in (file) size than normal because I just didn't like the way the map looked at a standard print-size.
The general idea behind this adventure is that after a "disturbance", some traders have gone missing and the party is asked to locate them and bring them to the trading site. I'm deliberately being a bit more vague than normal....
To go to the appropriate DTRPG page, click on either graphic in this post, or use this link.