Nagash is the Supreme Lord of Undeath, the Great Necromancer who names himself the one true God of Death and covets dominion over every soul that has ever perished. Cold, patient, and infinitely proud, he regards all living things as mere corpses that have not yet learned their proper station.
In the Age of Myth he ruled the amethyst realm of Shyish as a member of Sigmar's Pantheon, but his hunger for the souls of the dead could not be leashed. His betrayal helped shatter the divine alliance, and when he later swore an oath of aid to the God-King and broke it, the price was terrible — the spirits he denied their promised rest rose as the wailing Nighthaunt, storms of vengeful phantoms loosed upon the realms.
Slain and resurrected across the ages, Nagash always returns, for death cannot claim its own master. He wove the great work of the Shyish Nadir to draw all mortality toward himself, and his soul-harvests feed grim new legions. Chief among them are the Ossiarch Bonereapers, constructs forged from the bone-tithe of conquered peoples and disciplined beyond any living army.
Every empire he raises marches toward a single cold ambition: a silent, ordered cosmos in which all things are dead, and all the dead are Nagash. He is the end that waits at the close of every tale, and he is patient.