Allegiant

Book Three of the Divergent Trilogy

By Veronica Roth · ISBN 978-0062024064

What Allegiant is about

Allegiant is the only book in the trilogy narrated by both Tris and Four in alternating chapters. With the city’s factions collapsing into civil war, a group including Tris, Four, and their allies escape beyond the wall — discovering that their entire world was a genetics experiment run by an outside authority.

The revelation reframes the “Divergent” concept itself: rather than a mystical trait, genetic damage and repair become the series’ central metaphor, tying into Four’s family history and Tris’s own choices in the book’s ending.

Why it’s the trilogy’s most debated book

Allegiant’s ending is the most discussed moment in the series — see our ending explained breakdown for a full walkthrough of what happens and why it split fans and critics on release.

Read next

Catch up with Insurgent if you haven’t finished the trilogy, or see how the story was adapted (and ultimately left unfinished on screen) in the Allegiant film.