The crash of a rock against glass forces Cassie to make a choice. The outside air is poisonous, or so she has been told. Dare she risk it to escape the dome? The alternative is a slow death inside Arcadia. Paul believes the old dome contains wild creatures that threaten the lives of the people of Rangelands. But Cassie is just an ordinary girl, or as ordinary as any girl can be who has lived her whole life locked away inside an ancient dome. With all the obstacles thrown into their path, it seems impossible Cassie and Paul will find a way to be together. But sometimes the power of love can surprise us all.