Ling unfolds the map and turns on a tiny flash- light that is hidden within her ring. Then she draws a line with her fingertip. "All right. Here. Then here. Then this shaft leads up. There's a ladder." You follow her lead. There's hardly any glow from her light, so it's gloomy. And the air passing through the ventilators makes an errie sound- like the screech of wind in a horror movie. You hear scratching noises behind you. You turn and see dozens of tiny red eyes. Continue...