First in the contemporary Gossip Girl series about New York City's most fabulous high school crowd. Set in New York's glamorous Upper East Side, this book presents a narrative that follows the thrills and spills (with Jimmy Choo shoes and shopping at Barneys mixed in along the way) of its richest and most beautiful teenage residents.

It's Christmas and Blair and Serena are best friends again and up to their old tricks - partying hard and breaking hearts from Park Avenue to the Caribbean. And when school finishes, Blair, Serena, Aaron and company head down to blow off steam after their exams, and in between Pina Coladas, Blair and Serena plot revenge on super-jerk Chuck Bass.

How can Mia bear it? Michael, her one true love, has gone away to college, leaving her to face a new school year alone (well, nearly). With a potential eco-disaster in Genovia, a new English teacher who can't stand her and a totally transformed Boris to get used to, life for the world's most reluctant royal is looking like it can't get much worse.

Virginia has a larger-than-average body and some inferiority complex. Her mum is an exercise fiend, her dad whistles at skinny women, and her siblings are gorgeous and impossible to live up to. They're all people Virginia thinks the world of. In fact, Virginia thinks the world of everyone but herself. Then, a phone call changes everything.

An ordinary girl and a princess swap places for one extraordinary night.