Clary has lead an ordinary life for as long as she can remember, living in Brooklyn, New York and attending school like she was supposed to, growing up with her childhood friend Simon. But the shadows of her life are starting to catch up in the form of a mysterious "Shadow Boy" who starts showing up at her school, like he's looking for something. Or someone. Should she fear for her life, or her heart amidst the shadows of deception and dangerous desire?