Into the Yellow Zone: A POST APOCALYPTIC NOVEL (Into the Outside Book 2) (YA)

Isabelle and her group is still traveling on their way, meanwhile her bother Luke is trying to find a way out of his lock-down so he can get back to finding her and getting her the medicine her thinks Isabelle needs.  Will they ever catch up to each other?
This has been such a awesome series so far, the action level is still high and the suspense is thick.  The characters are wonderful and they all work so well with each other.  The author along with the narrator paint the scene for the reader/listener so well you fell like you are there with Luke and Isabelle.  It is so real in the audio version  sometimes you think you actually hear birds. This is a really good series and not one that should be overlooked.