Book excerpt: A weeks vacation goes terribly wrong for four young people when hoodlums kidnap and leave three of them tied and gagged two hundred and fifty feet underground in an old, abandoned mine shaft. Charlie and Jennifer are forced to find a way to rescue their friends before it becomes too late. With a limited supply of water available and cave-ins that threaten to trap all five of them underground, the group struggles through dust, lack of air, and a desire to be free again.