One night in the dark depths of the woods, three teenagers overhear a conversation that will bring their young lives into the most unimaginable peril. It will lead them into a cat and mouse game with ruthless killers. It will reveal to them dark terrors from the past that lie buried near their secret Hidden City. They must take action, but the odds against them are surely insurmountable. And as they pursue the mystery they discover a surprising twist in the plot that leaves them groping around for help. They cannot go it alone, but where can they find help? In this second story in the series, following on from the gripping mystery of The Cave, Bondy&co find themselves in desperate straits. IT IS A MATTER OF LIFE AND DEATH, AND TIME IS RUNNING OUT!