Poison apple books

When best friends Lena and Abby find an old Polaroid camera at a thrift shop, they're creeped out by the images it produces, which include the shadowy figure of a boy they've never seen before.

"Casey Slater can't believe her bad luck. Instead of the perfect summer vacation she'd planned, Casey is in a remote country town, where her parents are restoring an old, creaky, creepy house. Worst of all, everyone in town thinks the house is haunted. Soon Casey thinks so, too--a vase explodes, a 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 she's scared to death!"--Back cover.

Anna's new friend, Emma, looks just like her, but Emma is a bit of a trouble maker.