Lost, and Found(A Divergent Story)

Starting at the end of the second book(Insurgent) Tris and Tobias are confused about what will happen now after the video. That is until Emily, a girl from our world gets thrown into theirs. But the weird thing is that the books still exist in our world! And she has read them! Can Tris and Tobias trust this strange new girl who knows more about their lives then they do? And how will the Divergent world survive in this quest to find answers? Maybe what they need has been in front of them the whole time.