"We have to keep moving," Caleb says through gritted teeth. "Before someone else shows up to attack us." My heart pounds, but I nod. We have come too far to give up. All of us go through some tunnels that seem endless, shadows clinging to every surface. Strange whispers echo around us, disembodied voices taunting and threatening. I try to shut them out, to focus only on putting one foot in front of the other. Just when I feel ready to collapse, the passage opens up into a massive cavern. Glowing crystals jut from the walls and ceiling, illuminating a small encampment below. I blink in disbelief. There are people here! "Who...who are these people?" I ask in a shaky voice. Ragged and weary but very much alive, the prisoners creep out to meet us. I count fifteen in total. There are men