The Spine of the World (Paths of Darkness #2)

Spending time in the unimaginable torture chambers of the Abyss for even a day would be enough to break even the heartiest soul, and the barbarian Wulfgar was there for years. When he returns, his friends find him a changed man, and not changed for the better. But Wulfgar's road to redemption is one he must travel on his own, even if it leads to the bottle.