In the city of Valora, where mages are feared and closely governed by the law, Pandora Small spends her life pretending to be someone she is not. Raised in seclusion by a shrouded guardian, Pandora learned to wield her magic in a way the world has never seen, making her more weapon than girl.

Pandora may have escaped her guardian, but powerful forces keep them bound together and she'll do anything to find them again to break their bond for good. Posing as an Ingenue, a well-off young woman with limited magic, Pandora hopes to gain access to the royal court's social season and the wealthy elite who make it their playing ground. Pandora's arrival at court becomes more complicated when Ellis Beacon, a promising young member of the royal guard, discovers the true scope of Pandora's deadly magic. Secretly sympathetic towards mages and convinced that Pandora is no harm to the public, Beacon agrees to keep her secret.

But when someone or something with powers terribly like Pandora's own begins killing her fellow Ingenues, Beacon must decide whether Pandora is truly innocent or if there's ruthless killer lying under her masterfully crafted facade. And Pandora will have to open up to gain Beacon's trust because joining forces may be the only way for Pandora to find her freedom and catch the real killer plaguing the city.