The lights flickered as I stepped on the metal walkway. A yellow ladder at the other end was my only means of escape from the possible reinforcements that could show up at any minute. I mount the ladder and prepare to slide down. I hear a giggle and look up, and there she is. A silhouette of a small girl stares into my soul. I'm not sure who, or what, she is. Before I have a chance to react to what I just saw, she vanishes...