A Campaign for Warhammer Fantasy produced by Forge World featuring the chaos lord Tamurkhan, Nurgle's most favoured son, and his army as they march against the Empire. There are 6 scenarios that are unique to this book. The entire campaign can consist of 6 seasons of randomly rolled scenarios pulled from the 6 in the book, from the main Rulebook, or from Storm of Magic. The campaign can be played by two players, or can be played by a huge group of players, such as a gaming community. There is also additional rules for units for "Warriors of chaos" and "the Empire", and a new list for "Chaos Dwarfs".