On AVARIA, emotions are dangerous. For the Hume, feeling the wrong emotion might cause an explosion or start a pandemic. For the Eoni, feeling any emotion at all could strip you of your immortality. It’s in this world that a plot is brewing among the Hume: a plot that, if fulfilled, will leave only one race standing. Kasper and his friends must dive into a world of technology, magery, politics, and ethical ambiguity to stop an almost unspeakable horror: the world’s first genocide.