"An eye out, of course," Lewis said, her eyes roaming across Rachel first before she turned to watch back the way they had come.<br/><br/>Dr. Parker fumbled with her radio, her hands shaking badly. She seemed seriously frightened, only just able to function. She tapped the receiver on her headset. "Base, this is Dr. Parker. Do you read me? John? Guys?" Parker made a face then shook her head. "We must be under too much rock, I'm only getting static."<br/><br/>The tunnel you are in continues on into darkness, but the only other way is back.<br/><br/>"I don't hear anything back there. I don't think they're following us," Lewis said, sitting heavily on a rock. "But then, why should they? They apparently can just pop out of wherever they want anyway." She glanced down at her feet, as though the rock below may not be as solid as it seemed.