Other editions of book Underworld

A school trip goes disastrously wrong when five troubled high school students find themselves trapped in an underground cave. Their best chance of escape is to stay together. But when a member of the group disappears, their hope of finding a way out starts to fade. Does one of the remaining four know more than he or she is letting on, or is there something evil lurking in the caves?

A school trip goes disastrously wrong when a visit to local caves turns into something far more sinister. Five students find themselves trapped beneath the ground. Their best chance of escape is to stay together. Then a member of the group disappears, and their hopes of leaving start to fade. Does one of the remaining four know more than they are letting on, or is there something evil lurking in the caves? The students find themselves struggling for dominance as well as survival . . .

A school trip goes disastrously wrong when five troubled high school students find themselves trapped in an underground cave. Their best chance of escape is to stay together. But when a member of the group disappears, their hope of finding a way out starts to fade. Does one of the remaining four know more than he or she is letting on, or is there something evil lurking in the caves?