Trapped in the library of an old Brownstone with a monster filled with terrible power and darkness, street thief Kierse, when, instead of killing her, the monster offers her a job--gets a glimpse into who she really is, which could be something far worse than a monster.

Thirteen years ago, monsters emerged from the shadows and plunged Kierse?s world into a cataclysmic war of near-total destruction. The New York City she knew so well collapsed practically overnight. In the wake of that carnage, the Monster Treaty was created. A truce...of sorts. But tonight, Kierse?a gifted and fearless thief?will break that treaty. She?ll enter the Holly Library...not knowing it?s the home of a monster. He?s charming. Quietly alluring. Terrifying. But he knows talent when he sees it; it?s just a matter of finding her price. Now she?s locked into a dangerous bargain with a creature unlike any other. She?ll sacrifice her freedom. She?ll offer her skills. Together, they?ll put their own futures at risk. But he?s been playing a game across centuries?and once she joins in, there will be no escape...