Whisper

Lyra has super running in her veins.
Supernatural, anyway. She and her family specialize in battling the real-life demons that normal people don't know about, and take pride in every job well done. However, after a horrifying case gone wrong, Lyra's father has decided they're done with the family business and moves Lyra to Ridgefield to start over.
When strange things start happening at Lyra's new school, she decides to take it into her own hands. She's a strong, capable girl, after all. Even though a certain group of cute guys distract her at every turn, she's still got this. Even if mean girl Jessica wants her gone, she'll stick around until the job is done. She's super like that.
But darker things than a single ghost are stirring in Ridgefield, and they won't rest.
Welcome to the Whisper Chronicles.

Warning: this book contains strong language and violence and abuse, so any readers who may feel uncomfortable with this should be careful! I'll try to put a warning at the beginning of chapters with disturbing scenes.