Depths of Night — Stephen Zimmer

After a harrowing end to a long sea journey, the famed northern warrior Ragnar Stormbringer and a force of warriors step ashore in the lands of the Petranni, a tribal people known for their workings in silver and gold. The search for plunder takes a sharp turn when homesteads, villages, and temple sites show signs of being recently abandoned.When it is discovered that the Petranni have all taken refuge within a massive stronghold, Ragnar and the others soon fall under the shadow of an ancient, deadly adversary. Wielding his legendary war axe  Raven Caller, Ragnar finds his strength tested like never before.