Laurel Wang knows that the ghost of her beloved great-grandfather lives in the oak tree outside her house. But now her grandparents are arriving from China, and the family must move to a bigger place, leaving the protective spirit behind. Twelve-year-old Jonathan and his family are moving into Laurel's house -- and he's not too happy either. He's living with a stepfather he can't stand and a dog he didn't choose; now he has to say goodbye to his old...