The Duergar Keep (2019)

Publisher's blurb:

Welcome to the Badlands! The region gets it’s name because it has become a haven for some of Faerûn’s most notorious criminals as well as displaced tribes of dark origin, driven from their original lands on the losing end of some distant campaign. Tribes like the Duergar Deepblight Clan, driven from their homes because of betrayals they committed. For years the unwanted have fled there, the farthest northern regions there are.

Every defeated dark lord and necromancer, every ousted Orc tribe and treacherous general that every lost a coup or campaign. This far north, lost in the ice wastes, they escape pursuit from those they have wronged in the south.

But now something else is there, organizing, spying, arranging... defeated tribes are working with defeated dark lords... what could possibly bring these guys together? Or whom?

Begin the quest in Citadel Adbar where they are offering a bounty...

This is module 1 of 4 modules adventuring North of the Ice Mountains solving the riddle of the Badlands!