One choice can transform you ? or it can destroy you. Tris Prior's initiation day should have been marked by victorious celebrations with her chosen faction; instead it ended with unspeakable horrors. Now unrest surges in the factions around her as conflict between their ideologies grows. War seems inevitable; & in times of war sides must be chosen, secrets will emerge & choices will become ever more irrevocable. Tris has already paid a terrible price for survival & is wracked by haunting grief & guilt. But radical new discoveries & shifting relationships mean that she must fully embrace her Divergence ? even though she cannot know what might be lost in doing so.