From publisher blurb:
"Very bad men in very deep trouble"
Travel back in time to 1452, to find a gang of hardened mercenaries gone very, very bad. They have taken up residence in a hidden valley in the Franconian forest, where their sins have caught up with them at last. But their innocent neighbors are suffering too. War has broken out and blocked your route, putting this tortured valley in your path. Can you penetrate the deadly mystery, and liberate the people of The Devil’s Pass?
Codex Adventum: The Devil’s Pass is a short historical 'Low Magic' adventure with strong horror elements. It is designed for 3-4 players of levels 4-6. This mini-module is based in the same world as The Road To Monsterberg series, in a slightly different region (600 km away) in Franconia, Germany. But it's basically the same Late Medieval Holy Roman Emprie. This module is designed for you to hit the ground running, with less preparation and more convenience. It comes with five pre-gen characters and several NPCs (several of which can also be used as player characters) although you can generate your own using the Player's Guide or any other method you prefer. It's also adaptable to other systems such as WHFRP, Mythras, Gurps Low Tech etc.
This module takes place where the mini-encounter "Robbery at the Zur Höll" leaves off, and that entire micro-encounter is also included in this book for conveniencce. The Devil's Pass puts your players into a contained environment, a seven kilometer long valley, where a small town is bseieged by the depraved remnants of a mercenary company gone bad. There are other (supernatural) things afoot in the valley to further complicate the situation, and your PCs will have to be on their toes to survive. They will have an opportunity to engage in several combat encounters and (if you want) to unravel a variety of mysteries.