For the first time ever, the Weston sisters are at the same boarding school. After an administration scandal at Libby’s all-girls school threatens her chances at a top university, she decides to join Charlotte at posh and picturesque Sussex Park. Social-climbing Charlotte considers it her sisterly duty to bring Libby into her circle: Britain’s young elites, glamorous teens who are just as comfortable at a polo match as they are at a party. It’s a social circle that just so happens to include handsome 17-year-old Prince Edward, heir to Britain’s throne. If there are any rules of sisterhood, “Don’t fall for the same guy” should be one of them.