Paul Cram
Under the border leading into Mexico, within a labyrinth of caves, a deadly presence haunts all who enter. For four friends on an expedition, the caverns become an underground graveyard as the tortured ghosts prey upon them, one by one.
A CIA assassin attempts to break out of the contract killing business to try to lead a normal life. But when “the system” tracks her down and frames her for the death of her husband, she embarks on a path of revenge that leads her back into the life she tried to hard to abandon.