For 17-year-old Nyx Madden, stealing shadows is second nature. This rare power allows her to control the person whose shadow she holds. And, since she's been on her own for the past five years, it's her only chance at survival.
But Nyx's life in the shadows is jeopardized when she is visited by Victor, the enigmatic leader of the criminal underworld. Somehow, he discovered that she is the faceless Shadow Thief, Itoria's most wanted criminal. If he reveals her identity, she'll be hanged.
Victor strikes a deal with Nyx. He'll give her more gold than she knows what to do with in exchange for the shadow of Itoria's Silver Prince, thus nicknamed for his fickle nature and careless wealth. Nyx readily agrees, as this may be the last shadow she ever has to steal. And, considering the Silver Prince's rotten reputation, Itoria can only improve with him out of the way.
In order to take the prince's shadow, Nyx must uncover his greatest fear and confront him with it. She infiltrates the castle, where she discovers that nothing in Itoria is as it seems, including the prince himself. Stuck under his dying father's thumb, the Silver Prince has little freedom-but his selfish, callow nature might be hiding a golden heart.
With her identity hanging in the balance, Nyx finds the fate of the entire kingdom in her hands-and her own heart in the hands of the Silver Prince.
Tristan steals shadows to make familiars out of them. It was all completely harmless until he stole the shadow from a demon, effectively stripping away all of their powers. Now Gregor is stranded in a dimension not his own without magic. Tristan agrees to help him get home, the least he could do because it was mostly his fault (and totally not because he has a crush on Gregor, or because of Gregor's compulsion magic or because he kissed him.)
But then everything goes wrong when they get attacked by fire elementals who work for the demon Earl Alfred of Aleman who is also after Gregor's magic. The elemental manages to steal the shadow and now Gregor and Tristan must travel through different dimensions to get the shadow back and slip the Earl and his henchmen in the process.