School Spirits: a Hex Hall Novel Unabridged edition

Fifteen-year-old Izzy Brannick was trained to fight monsters. For centuries, her family has hunted magical creatures. But when Izzy's older sister vanishes without a trace while on a job, Izzy's mom decides they need to take a break. Izzy and her mom move to a new town, but they soon discover it's not as normal as it appears. A series of hauntings has been plaguing the local high school, and Izzy is determined to prove her worth and investigate. But assuming the guise of an average teenager is easier said than done. For a tough girl who's always been on her own, it's strange to suddenly make friends and maybe even have a crush. Can Izzy trust her new friends to help find the secret behind the hauntings before more people get hurt?