All of Myrillia is held in a grip of unease when a skull, twisted and corrupted by dark Graces, is found. It's the work of the Cabal, a faction of daemonic naethryn intent on destroying the Nine Lands. Former Shadowknight Tylar must unravel the mystery of the skull before all of Myrillia is threatened.

To save the Nine Lands-and himself-Tylar must enter the Hinterland, the desolate territory beyond the blessed Lands, where rogue gods roam and dark Graces flow-and from which no Shadowknight has ever returned.