Divergent is a series of young adult science fiction adventure novels by American novelist Veronica Roth set in a post-apocalyptic dystopian Chicago.

[2][3] A related book, Four (2014), presents a series of short stories told from the perspective of one of the trilogy's characters, the male love interest Tobias.

The trilogy's society defines its members by their social and personality affiliations, with the five different factions removing the threat of anyone exercising independent will and threatening the population's safety.

[4] The first main installment in the series tells the story of Beatrice Prior, a teenager who lives in a post-apocalyptic Chicago in which society has been divided into five factions, each with a specialized social function: Abnegation, Amity, Candor, Dauntless, and Erudite.

Beatrice, a member of Abnegation, transfers to Dauntless at the age of 16, takes the new name Tris in the process, and forms a romantic relationship with Abnegation-born Tobias Eaton.

Taking place three years after the events of Allegiant, it focuses on Tobias and Christina as they slowly form a romantic relationship as a way to fill the void left behind by their dead lovers: Tris and Will.

Summit Entertainment had bought the rights to film an adaptation of the novel and recruited Neil Burger to direct, with Shailene Woodley starring as Beatrice "Tris" Prior and Theo James as Tobias "Four" Eaton.