Norway, AD 824. The evil Queen in the Mound is dead, the Irish necklace held fast in her ghoulish grip.

But Ragnhild arrives in Tromøy intent on retrieving the necklace, setting off a chain of disaster. As her people sicken and die, Åsa desperately seeks a cure.

Leaving her beloved son behind, she travels alone to the dark world deep underground, a place from which mortals never return:

The realm of Hel herself.