Turning seventeen should be a happy occasion, but for Princess Tariana Osono, it is anything but. Even though her arrival on the mysterious planet Xonareth - along with her younger sister, Margeth, and their enigmatic ship's navigator, Lt. Rasharri - has freed that world from a ten-thousand year exile from the stars, they have still not found a way home, thousands of light-years across the galaxy. Meanwhile, Xonareth's last two remaining cities face a new danger. As they struggle to restore the quickly-dying Cintronia crystals that are their only source of power, a shadowy movement emerges,...