Only the chosen shall breed. Four teens must face the fallout of the Proving. Three have made it through. One has not. Nova. Kian. Dex. Wren. Four lives defined by the outcome. Four lives who thought the Proving was the most difficult test they would ever have to face. They all assumed Askala was safe, but a link to the Outlands has been established and a Remnant invasion is now a threat. In a starving, damaged world, Askala has what others want. Except the fight for survival is far more complicated than right or wrong, or us and them. It's about humanity versus Earth. As bonds are fractured and new connections are forged, the question becomes - how do you fight for your world, but also your heart? Lovers of Divergent, The Hunger Games, and The Maze Runner will be blown away by the breathtaking new series from USA Today best-selling author Tamar Sloan and award-winning author Heidi Catherine.