Alice Ogilvie's disappearance last summer is the biggest scandal at Castle Cove High School--until her ex-boyfriend is accused of murdering his new girlfriend, and Alice must pair up with her tutor Iris Adams to clear his name by relying on the wisdom of Agatha Christie. Last summer Alice Ogilvie's basketball-star boyfriend Steve dumped her... then she disappeared for five days. Where she went and what happened to her is the biggest mystery in Castle...