Welcome to Petrasada. The City of Light. The City of Clouds. The City of Joy. It is the last bastion of human life floating miles above an endless desert world. And a string of serial murders are threatening to tear the city apart. Anelia Orba is the newest rookie in the magical winged police force of Petrasada. She is inexperienced, naive, paired with a resentful partner, and fully expected to fail. But when a strange clue takes Anelia off the procedural path, she'll have to overcome the odds before the City of Light falls to darkness, and she loses everything she cares about.