Everyone’s heard the children’s stories, of the necromancers that live in the woods, that’ll steal little children that wander too far. The stories worked, and kept most kids close to home. No one thought they were real, not in this day and age. We don’t know where they came from, or what they want… Maybe to just destroy every living thing except themselves. They’re immune to the plague somehow, but that figures since they control the hordes. Kill them on sight, and burn the corpses. It’s the only way to be sure.