In the rain-soaked shanty towns of Excelsis, sellsword Niksar Astaboras drunkenly barters his way to a meaningless existence. Little does he care for the war that rages between men and monsters beyond the city walls, despite portents of its encroaching threat. Mortal life in the Realm of Beasts is short enough, and to leave the shelter of civilisation is to surrender to certain death.

But death is coming to Excelsis. The forces of Destruction are on the move and the realm quakes with each thunderous step. In the wildlands, a sinister new foe overwhelms even the mighty Stormcast Eternals. Yet just as all seems lost, an unexpected champion rises - one to whom Niksar is inextricably linked - ready to lead a crusade into the very heart of darkness. Embroiled in this harrowing journey, Niksar is forced to choose between loyalty and the chance of survival, and in so doing discover his true worth in the greatest battle yet against savagery.