Body
Deep within the Deathgorge lie the hatcheries of the Rimewyrms, descendants of the godbeast Fangathrak. They exist in a state of constant frostbitten misery, freezing to death even as their divine constitutions keep them alive, and viciously preying on any who descend into their lairs… And plenty do, for treasure and glory await in that boreal abyss.
Last of the Adepticon previews covers Warhammer Underworlds - Wintermaw.
As with all Underworlds boxes, this is a perfect in to the game as it contains everything you need to get player including two new warbands, and what a pair doozies they are too!
The Brethren of the Bolt are a fanatical sect of the Cults Unberogen who worship Sigma, and I think it's safe to say they aren't all there... They face off against The Skinnerkin.
Tasty looking stuff in these two warband. Original article with more details here