ALIVE Episode #15

from  Scott Sigler's Audiobooks

In a quest to find a weapon that can defeat the monsters who took Bello, Em has led her friends to a place that Bishop and Gaston discovered earlier — the place where Bishop found the spear. Those three, along with Aramovsky and El-Saffani, opened a strange door in the floor and are descending down a long ladder, into the darkness, into the unknown.