I sucked in the last breath I would ever call my own and sealed my contract with one word: “revenge.”

Born into the persecuted Magi class, Evan Wilde keeps her true identity under wraps. Her days are spent drawing up simple contracts—a task Magi are banned from performing—which call devils from beyond the veil to carry out clients’ requests in exchange for a bit of blood or breath. It’s not until Evan lies dying in an alley, the victim of an illegal blood sacrifice, that she draws a contract for herself. A devil can take the last of her life—if it grants her revenge.

Such a hasty, open-ended contract can only lead to trouble. But when a devil named Jack accepts her terms, Evan decides to make the most of her borrowed time. With Jack’s help, she infiltrates high society, posing as part of the ruling Necro class—the group responsible for oppressing Magi and perpetuating illegal blood sacrifices. Dining and dancing by day, unleashing her devil at night . . . for the first time in her life, Evan no longer lives in fear. She even finds friends—and love—within the circles of her supposed enemy.

It turns out that, for all their corruption, Necros are the only ones keeping the devils at bay. If Evan and Jack topple their society in revenge, the veil between worlds could vanish, leaving devils to wreak havoc. Evan’s vendetta against Necros could destroy the entire world, including her newfound friends and love.

But even if she changes her mind, Evan is not the only one out for blood. Jack didn’t indenture himself for nothing; in fact, Evan’s contract could be the key to enacting his own twisted vengeance . . . .