内容简介：
John Fowler is a successful geology professor in Flagstaff, Arizona. His life is somewhat of a paradox; he travels the globe to manage numerous archaeological digs, but hasnat yet been able to work up the courage to talk to a fellow professor with whom he has been in love since day one. Nevertheless, he is happy, that is, until he receives the call. Johnas friend, Jeramie Ivie, has discovered a cave unlike anything he has encountered before. Johnas eagerness and curiosity quickly give way to horror as he discovers what true evil lies inside. The passive and timid professor must now find the courage to fight for his life and put an end to the madness deep below the Earth. This fast-paced sci-fi thriller will be sure to keep you enthralled, and question the answers. Sleep with the lights ona]