At Comic-Con this past Thursday, Veronica Roth revealed that Allegiant is from Tris and Four’s point of view. Now she’s explaining why.

“I tried repeatedly to write Allegiant in just Tris’s voice, but it didn’t work; her perspective, her way of seeing things, was a little too limited for the story I needed to tell,” explained Roth on her Tumblr. “I wanted to do two things with it: A. let two characters experience different things, and B. let them react differently to the same things, so that I (and eventually, the reader) would get a better sense of the whole story, the whole picture.”

She continued, “I’ve said before that I’ve always seen Four (increasingly, as the series goes on) as a plot-mover alongside Tris, so he was the obvious choice for the second POV (though not the only one I tried). Exploring him and his choices and his assumptions about the world was incredibly interesting to me.”

Roth says she’s “confident” in the final product which hits store shelves October 22. It is the final book in the Divergent trilogy but not the last from the dystopian world. Roth will also publish several Four short stories.

The initial announcement was made during the Divergent panel at San Diego Comic-Con where the film’s stars including Shailene Woodley and Theo James shared the first footage from the film.

We’re looking forward to the expanded point of view, and we’re still impressed by how Roth kept it a secret for so long.