Dr. Parker cast a nervous glance at Rachel while Maria stared hard at her. Lewis' face had changed from a mask of surprise to something cold.<br/><br/>"Well, you see ...," Parker stammered. Before she could utter another word Maria cried out, launching herself at Parker.<br/><br/>"You bitch!" Maria screamed, grabbing Dr. Parker by her coat and shoving her back against the rock wall. "You fucking knew what was down here?!"<br/><br/>Maria's arms trembled with fury as she slammed Parker against the wall again. She looked about ready to kill the scientist, who stared back in shock and fear.