User summary: The Campaign is a game mastering guide for Dark Fantasy. It provides guidelines for running a game, an overview of the setting, how to manage NPCs, and a bestiary.
From the Introduction:
The Campaign book contains information required for running the Dark Fantasy Campaign. It is not necessary for Players to read this section, nor is it necessary for the Game Master to fully absorb the entire book. It is given as a defence and a guide for Game Mastering only.