Three months after her cousin Toni died, Cassie is still reeling. Toni's best friend now ignores her in the halls. Cassie's cousin is dating the girl who torments her in gym. And Cassie has maybe a teeny-tiny crush on the boy who pulled Toni's body out of the river. Then Toni's ghost visits Cassie and reveals that in two nights, a powerful EF3 tornado will rip into a dance hall, killing those three kids. Cassie sets out to keep everyone from going to the dance. As she argues and cajoles (and stockpiles minor munitions to clear the building, just in case) she uncovers stories about her...