" In the middle of the night, she'd woken up with a memory of her grandmother's voice ringing in her ears. " When it happens," the older woman had said, holding on to Jenna's hand with surprising strength for someone with one foot in the grave, " and it will, don't stay in the cities. She can find you in the city. Too many eyes and whispering tongues that no one can see. Run to the woods, far away from everything and everyone you ever knew. Run, girl, run as far and as fast as you can. "