A Plague infection can rapidly spread throughout a population centre, converting or killing without any apparent prejudice or preference. Some victims will become Stage 3 forms, retaining a modicum of intelligence alongside the savage destructiveness the Plague imparts. Most, however, appear to lose even that last piece of their humanity and devolve into shambling wretches, a kind of cannibalistic ‘herd’, seemingly incapable of anything but the most basic motor functions – move, kill, and consume.