In the first novel of this YA futuristic/dystopian series by Lisa T. Bergren, gifted teens known as Remnants have been chosen and trained to act as humanity's last hope to rectify the horrors that are now part of everyday life in 2095. The Community has trained these teens as warriors and assigned them Knights of the Last Order as protectors; together they are a force that will be difficult to bring down. The Sons of Sheol, of course, are hell bent on doing just that.