Stealer of Flesh by William King

The Ghul are the Stealers of Flesh, an ancient race of demons who possess the bodies of humans to work great evil. Now one of them has been freed from its ancient prison using Kormak’s own dwarf-forged sword and the Guardian must pursue it to a haunted city on the edge of the world to end its reign of terror.

Stealer of Flesh contains four-linked novelettes that tell the epic tale of Kormak’s hunt for a prince of demons. In it he encounters a conspiracy of demented mages, an army of werewolves, Orcish blademasters and a beautiful alchemist and her insane poet brother.