Divergent Series in Order by Veronica Roth

In a dystopian Chicago, society is divided into five factions based on human virtues, and sixteen-year-old Tris Prior must choose where she belongs. As she undergoes initiation, Tris discovers a dangerous secret about herself and uncovers a conspiracy that threatens her world.

Tris and her allies face increasing unrest and danger as they seek to uncover the truth behind the factions' conflicts. With her world falling apart, Tris must navigate political intrigue and personal struggles to protect those she loves and find answers.

Tris and her friends venture beyond the walls of their city to discover what lies outside and the true nature of their society. As they encounter new truths and face unexpected challenges, they must decide where their loyalties lie and what sacrifices they are willing to make.

This companion book offers additional insights into the series through the perspective of Tobias "Four" Eaton, Tris's love interest. It includes stories about his background and experiences before and during the events of the main trilogy.