Jupiter Sanctum is a part of one of the largest fanilies in the city of Laag. Her cousin has made a name for himself as an inventor for Zebrith's military, and as an inventor herself, she is expected to follow his lead. Once Helion declared war, Inventors from all over the country were called to aid in the effort to create technology to win the war. Jupiter, however, detests the declaration of 'war' and refuses to take part in it. But she can't avoid being called to the palace to discuss her fate.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.