Every other day, Kali D'Angelo is an average teenager. She goes to public high school. She attends pep rallies (reluctantly).She's human. And every other day in between . .. she's not. Though she's not quite sure what she is on those days, Kali knows what she does .. . she hunts, traps, and kills demons, hellhounds, and other supernatural creatures that threaten her world. On those days, she is practically indestructible. But when Kali notices a mark on a popular girl at school, she knows instantly that the girl is marked for death by one of these unworldly beings. And she knows she has only twenty-four hours to save her. There's only one problem . . .it's the wrong twenty-four hours.
 
Jennifer L Barnes