From publisher blurb: Humanity battles for survival in the dangerous world of Gaia, where Infection and Mutation are a daily threat. Organising itself into factions with different ideas about how to best survive the dangerous world they inhabit, they clash with each other as often as Infected. Join the Swarm in their quest to cleanse Gaia of the Infection! The Swarm Source Book brings more details about the mysterious and powerful faction and its plans for Gaia. Become an Abcediary, brainwashing new members of the Swarm, an Agent who infiltrates communities outside of the faction’s influence, or an Artificer who creates amazing new technologies which those outside the faction can only dream of! The Swarm will systematically destroy all Infection and save Humanity. You have only one choice when you encounter them: join or die.