The in between year

Everyone knows the story of Tris's initiation, and of Four's. But what about the year between? Katie is a violent Amity, Melissa is a Candor who keeps lying, and Lexi is a haughty Dauntless, whose life is great.. until she is pronounced Divergent. The three don't get along, but how will they react when they are forced together for the greater good? Rated T because I'm paranoid.