“If they’re decades old,” Farooq-Lane said, “that must mean that we did it. That we stopped the end of the world. Isn’t that how it works? If you’re looking back at this from someone who becomes decades older than this memory? It means you are still alive after all this.” Liliana frowned, and for the first time, something like distress flitted across her face. “I think I am harder to kill than humans.”

