City of Assassins

Zed Niarmon, Navigator of the Essence Flows, returns home to Sel-Kai--to find that hundreds of dwarves and other Navigators have been abducted. When Zed and his allies investigate, a frightening revelation is made--the Dragonlords are back, and they are using their kidnapped victims to open essence portals. Based on the bestselling role-playing game Shadow World.