From the back cover: The door to the laboratory slid shut with a hiss. The battle was over, and the short man wiped a fleck of greenish fluid from his face. The lights in the ceiling flickered and cast a bleak glow over the fallen individuals on the floor in front of him. The man’s two accomplices – one immense and mechanical, the other shadowy – awaited new instructions. “It is done,” the short man said. “We have no time to lose. It is time to set our plan into motion. Soon, the entire Zone will be at our feet.” The Gray Death is an epic campaign module to be used with Mutant: Year Zero and its expansions. The Gray Death takes the stories in Mutant: Year Zero, Mutant: Genlab Alpha, Mutant: Mechatron and Mutant: Elysium and ties them all together. Mutants, animals, robots and humans must put their differences aside and unite against a common threat to the world at the end of days.