Beatrice and her brother are both sixteen when they must make the life-changing choice of the faction they will join.
Beatrice leaves everything behind, including her name. If she survives the initiation, she will hold a place in the society she has always admired. If she fails, she risks her life and the lives of the people she loves.
Divergent by Veronica Roth is all action and no soul. The plot is full of surprises and unexpected twists, but the characters are shallow and dull. Even though the book is non-stop action, I was bored. The few sex scenes thrown in for interest make it an unlikely suggestion for my students. The lead up to the climax is interesting, but from the climax to the end, the book becomes a copy of several Hollywood movies.
Unless you are a huge science fiction fan, I do not recommend Divergent. If you want a poignant book about war, finding a place in a society you don't belong to, and fighting your personal demons, read Ender's Game by Orson Scott Card instead.