Brightest Spark — Meg Hendry

Aura and her plans were only the beginning. Imunis is still determined to find a way to Fortius and take over. When Yibia becomes a part of Imunis's plans, Dimitri and Kian set out to stop her from reaching the depths. Mardon discovered more about the history of Cadrenti, of how Aura and King Irinius were stopped, but can the past be repeated to save Fortius now? Brightest Spark is a short story.