Poison Apple: The Dead End by Mimi McCoy (author) (US edition)

Casey Slater can’t believe her bad luck. It’s the summer before seventh grade, and instead of the perfect vacation she’d planned with her best friend, she’s stuck in a remote country town, where her parents are restoring an old, creaky house. Worst of all, everyone else in town thinks the old house is haunted. And Casey thinks so too! A vase explodes, a heavy china cabinet falls over on its own – and it seems like the ghost doesn’t want them there. Casey thought she’d be dying of boredom, but now it seems she might be scared to death!