[ Marcos glances at him, and tries to think of how to talk about this without creeping him out. Despite what some people might say about mutants, monsters don't exist in his world. Undead warlords are an entirely different thing that he hasn't begun to understand. ]

Not that many. I got the impression there were four or five, maybe six? But one of them seemed to be against the others. [ Who knows how many undead they control, but it's... a lot from what he's seen. He shrugs. ] I'm probably not the best source of information about them. I had no idea what we'd be facing until they invaded.