The Wolf King is dead, and Aelif, his twenty-year-old daughter, is left to face the draugar threat alone. As the undead besiege her village, the battle-hardened warrior does her best to fight back, ripping through the beasts with her greatsword, assisted by the runes inscribed onto her body and her massive wolf companion, Thorn.

When all hope seems lost, a mysterious, yet alluring woman—known only as Featherless—saves her life. Learning of the Seidha sorcerers’ plot to open the gate into the Tenth Realm, Aelif and Featherless must find a way to stop them, or they risk leaving the fate of Isjord in the hands of a vengeful god.