Certain he can save her from the underlord, Colm follows Finna back to the city, while Clíana chases after them as soon as she realizes her brother's gone. However, Colm's attempted rescue goes awry once he steals a mysterious pair of dice, and he must escape from the underlord's thugs himself. Clíana, meanwhile, sets out to recruit the help of a wizard fluent in the magical language of Alchema. Her search introduces her to an elite, exclusive world, a world she finds both intriguing and impossibly beyond her reach.
As both twins move toward finding Finna, and each other, they soon realize they've stepped into a world, and a mystery, bigger than they ever imagined-a world of dueling magical fates.