This means a few things, possibly. That they discovered a cure seems unlikely-- too hopeful, too silly. That they left the planet and slowly bled the contaminant out of their people, that seems more likely. Good, then; these lucky shits are immune.

(The third possibility is that they're dealing with something Daryl could never have come up with or understood, so it's not worth mentioning. He never took enough mushrooms to cook up the idea of alternate universes, but he'd be a fool to dismiss them; it just doesn't occur to him, beyond the vague sense that he's out of his depth.)

So Daryl just rests his head in one palm, looking over her once more. Like most young people, she's more than she seems. One day, maybe, that will stop biting him on the ass. "Don't know nothing 'bout this place. Dunno why you should know 'bout where I'm from."