Julia gilliland has always been interested in the natural world around her. She particularly enjoys studying the fossils and formations in the magnificent cave near her father's house. The cave seems plenty safe--until t...Julia gilliland has always been interested in the natural world around her. She particularly enjoys studying the fossils and formations in the magnificent cave near her father's house. The cave seems plenty safe--until the day a mysterious intruder steals the rope she uses to climb out.