In the dark underbelly of a beautiful city, two rival assassins are pitted against each other in a deadly game of revenge, where the most dangerous mistake of all is falling in love. In Fantome, a kingdom of cobbled streets, flickering lamplight, beautiful buildings, and secret catacombs, Shade-magic is a scarce and deadly commodity controlled by two enemy guilds: the Cloaks and the Daggers - the thieves and the assassins. On the night of her mother's murder, 17-year-old Seraphine runs for her life. Seeking sanctuary with the Cloaks, Sera's heart is set on revenge. But are her secret abilities a match for the dark-haired boy whose quicksilver eyes follow her around the city? Nothing can prepare Sera for the moment she finally comes face-to-face with Ransom, heir to the Order of Daggers. And Ransom is shocked to discover that this unassuming farmgirl wields a strange and blazing magic he has never seen before.