Their coming was foretold for years. Andriana is a Remnant, one of several gifted teens born on the seventh day of the seventh month, of the seventy-seventh year, and destined since birth to act as humanity's last hope against the horrors that now plague everyday life. After years of training in stealth and warfare, Andriana and her Knight protector, Ronan, are finally ready to follow the Call and begin the life they were designed for. But as they embark with the other Remnant on the first of their assignments to course-correct humanity, they quickly discover that the world beyond their protected homes is more dangerous than they imagined. The Sons of Sheol will stop at nothing to prevent Dri and Ronan from rescuing any individuals sympathetic to the Remnant's cause. As the Remnants attempt to battle the demonic forces, their enemies close in on them, placing all of humanity in peril. Dangers intensify, but so do Dri's feelings for Ronan---the one emotion she is not meant to feel. In the midst of their mission, Andriana must find a way to master her feelings or risk compromising everything.