Warhammer 40k Codex: Heretic Astartes Death Guard
The Death Guard are the Traitor Legion most favoured by Nurgle. Utterly devoted to spreading the Plague God’s hideous diseases across realspace, they are living plague vectors whose bloated bodies and rusted war engines boast grotesque resilience and firepower. They are a walking pestilence, a living plague of destruction and horror. Their heavy tread heralds the end of hope, and the damnation of all who oppose them. Their touch withers all, and spreads seething corruption that swallows worlds. They are the sons of Mortarion, the chosen of Nurgle; fear them , and despair.
Codex: Death Guard contains a wealth of background and rules – the definitive book for Death Guard collectors