Nightstruck

Becket is an ordinary teenage girl, wrestling with the upheaval of her parents' divorce. Her biggest problems to date have been choosing which colleges to apply to, living up to her parents' ambitious expectations of her, and fighting her secret crush on her best friend's boyfriend. That all changes the night she tries to save an innocent life and everything goes horribly wrong.

Becket has been tricked into opening a door between worlds. As dark magic trickles into Philadelphia, strange creatures roam the streets and inanimate objects come to life, all of them bloodthirsty and terrifying. The city returns to normal when the sun rises each morning. The moment the sun sets, most citizens shut themselves in their houses and stay there no matter what they hear.

The magic is openly hostile to most mortals, but there are some it seems to covet, trying to lure them out into the night. While Becket struggles to protect her friends and family from predatory creatures of the night, she is constantly tempted to shrug off her responsibilities and join them.