The book centers on a society divided by blood color: Reds, the commoners, and Silvers, the elite with superhuman abilities. The protagonist, Mare Barrow, a Red, discovers she possesses powers of her own, a direct challenge to the established social order. This revelation throws her into the dangerous world of the Silver court, forcing her to navigate treacherous political games and deception.
The narrative explores themes of social injustice, power, and revolution. The existence of a Red with Silver abilities destabilizes the long-held beliefs about inherent superiority and the justification for oppression. The protagonist’s struggle becomes a symbol of hope for the oppressed Red population, igniting a rebellion against the Silver monarchy.