Once upon a time there were seven good friends. They were the forgotten little brothers and sisters of the Big Chill generation, born in the turbulent year when the flames of Watts lit the City of Angels and napalm kissed the war-torn skies of Vietnam. They called themselves The Underground. For Justin and Mia, Josh and Caroline, Amy, Seth, and Simon, there was nothing but drugs and music, combined with boundless cynicism and a deep yearning for something that really mattered.As graduation rolled around, they knew they would drift apart. By Labor Day weekend, there was just enough time to throw one last private party. But where? Creepy old Custis Manor was temporarily uninhabited. So they motored out to the moldering southern plantation, ready to party the night away.They could not have known that on the other side of the mirrors, something watched: a corrupt, voracious force, neither fully living nor truly dead. It was a soulless spirit of evil that had spent...