This week, I give you a new Medieval-Authentic adventure scenario, for Lion & Dragon (https://www.drivethrurpg.com/product/226022/Lion--Dragon) but playable with your choice of OSR or D&D game, in the form of RPGPundit Presents #71: The Reivers (https://www.drivethrurpg.com/product/270332/RPGPundit-Presents-71-The-Reivers)!
This is a medieval-authentic adventure set in Dark Albion (http://www.dcrouzet.net/heroes-witchery/?page_id=206), along the area of The Wall between Albion and Scots Land. But you could probably set it up in any fantasy world where there's a wall to keep off barbarians.
In The Reivers, the PCs get caught up, in the area held by Albion just north of the wall, in a treasonous plot to help the Scots Men in what looks like an invasion plan, taking advantage of the instability of the Rose War. There's also crazy hermits, wilderlands, corrupt lords, and of course lots and lots of Scots Men! What's really going on? Is there supernatural activity afoot, machinations of traitors coming to fruition, or mere stealth and bribery of the Scots Reivers?
(https://4.bp.blogspot.com/-mHZd3jWqnHE/XJMIXV0f_lI/AAAAAAAAD-I/3eFjlTH6WCoWm66gNEVS1RMVhuCpKJNnwCLcBGAs/s320/71img.jpg)
You can pick up this short adventure for just $2.49 from DTRPG (https://www.drivethrurpg.com/product/270332/RPGPundit-Presents-71-The-Reivers), or from the Precis Intermedia Webstore (http://www.pigames.net/store/product_info.php?products_id=1003)!