A Poison Apple Book: Midnight Howl
Marisol is looking forward to spending part of the seventh grade living on a ranch in Montana. She and her mom will be staying with family friends and their twelve-year-old twins. But while Jack is welcoming, Hailey is less than friendly.
Then Marisol's new friend Lily warns her about the wolves in town - wolves that are most dangerous around the full moon. When Marisol notices Hailey disappear late one night, she starts to wonder... could she be living with a werewolf?