Olive Corbett is definitely not crazy. Not anymore. These days she takes her meds like a good girl, hangs out with her best friend Ami, and stays the hell away from the toxic girls she used to be friends with. She doesn't need a boyfriend. And she doesn't need the drama of that new creepy girl Miranda, who has somehow latched onto Olive's ex-best friend. Yet from a distance, Olive can see there's something sinister about the new friendship. Something almost . . . parasitic. Maybe the wild rumors are true. Maybe Miranda is a killer. But who would believe Olive? She does have a habit of letting her imagination run away with her. Exploring identity, coping, and fitting in, Shift is a complex, sinister, and creepy YA thriller.