"Every god is a superhuman who evolved abilities to live symbiotically with the energy feeding parasitic entity, called the human soul. These Preturnaturals guided human existence until the fall of Rome and the rise of a rival, the Vapids; those who evolved without any soul, and who begin exterminating the Preturnaturals, forcing them into extinction or hiding.  Two millennia later, a Preturnatural named Max Lucas crosses paths with her first Vapid, and finally discovers why she has been alone, and ignorant of her ancestry for her entire life.