For generations, the Magicians of Celeste have chafed at the limitations of the Compact, the treaties between the Magical and Mundane communities of the Allied Lands, and worked towards their abolition, envisaging a world in which magical supremacy would be established, allowing them to explore newer and greater fields of magic while keeping the powerless mundanes firmly under control. Their dreams were not taken seriously—until now.

With the end of the Necromantic Wars and the Allied Lands in disarray, they have finally stepped into the light and taken control of their city, declaring independence from the Allied Lands and creating a nightmare for both mundanes and any magicians who refuse to toe the line. And they don't intend to stop. It is only a matter of time before they export their new regime to the rest of the continent, crushing anyone who stands in their way.

For Emily, who has traced the enigmatic Hierarchy to Celeste, there is no doubt that the new regime is an ally to a far older and darker threat. Millions of lives are at stake, thousands killed, and tens of thousands more forced into slavery. The regime must be stopped, no matter the cost, before it imposes its own order on the entire world. But how can she prevail against an entire city of magicians, and a threat that has been decades in the making?