The Divergent Series: Allegiant is part of something.
It is the first of two cinematic parts based on the novel Allegiant , the final book in the Divergent trilogy by Veronica Roth , and the third installment in The Divergent Series .	Allegiant	Allegiant (novel)	Veronica Roth	Veronica Roth	The Divergent Series	The Divergent Series
The book is written from the perspective of both Beatrice -LRB- Tris -RRB- and Tobias -LRB- Four -RRB- .
Allegiant was published simultaneously by Katherine Tegen Books and HarperCollins Children 's Books in the U.K. Four weeks earlier , a free electronic companion book to the trilogy titled The World of Divergent : The Path to Allegiant was released online .	HarperCollins	HarperCollins	Katherine Tegen Books	Katherine Tegen Books	Divergent	Divergent (novel)
It completes the Divergent trilogy that Roth started with her debut novel Divergent in 2011 .	debut novel	debut novel	Divergent	Divergent (novel)
