Welcome to New York City's Upper East Side, where my friends and I live, go to school, play, and sleep-sometimes with each other. It's a luxe life, but someone's got to live it... until they die. So begins Gossip Girl, Psycho Killer, a re-imagined and expanded slasher edition of the first groundbreaking Gossip Girl novel, featuring all new grisly scenes and over-the-top gore by #1 New York Times bestselling author Cecily von Ziegesar. Just as in the original story, Serena returns from boarding school hoping to make amends with her BFF Blair Waldorf — things just haven't been the same since Nate Archibald came between them. But here's where our dark tale takes a turn: Serena decides that the only way for her to make things right with Blair is to eliminate Nate. If that means killing him, well, c'est la vie. Her attempted murder doesn't go unnoticed by Blair, however, who isn't about to let Serena kill whoever she wants-not when there's Cyrus Rose and Chuck Bass and Titi Coates and everyone else who's ever irritated Blair to get rid of first... American Psycho's Patrick Bateman has met his match in Manhattan's newest, most fabulous trendsetting serial killers, Blair Waldorf and Serena van der Woodsen.

Brett Messerchmidt is planning Waverly Academy's annual holiday ball and gift exchange. But when some enterprising students decide that playing Secret Satan is infinitely more fun, the entire school starts acting naughty. Now all Brett wants for Christmas is a quiet holiday-and a kiss from a certain someone under the mistletoe. Too bad Callie Vernon has the same idea. Everybody at Waverly is getting into the giving spirit. The only present Tinsley Carmichael wants to unwrap this holiday is her new boyfriend, Julian McCafferty. But what happens when she uncovers a shady secret from his past instead? Santa knows when you've been bad or good... but what's the point of being good when being bad is so much fun?

It's almost Valentine's Day at Waverly Academy, and love is in the air... and in everyone's inboxes. Each year, The Waverly Computer Society runs Perfect Match, an online personality survey that pairs up Waverly Owls with their supposed soul mates. Now the campus is overrun with peculiar pairings, odd couples, and mischief makers hoping to play Cupid for a day. Jenny Humphrey is convinced she'll be paired with her adorable new boyfriend, Isaac Dresden. But when he starts acting skittish, she begins to wonder if he's her Perfect Match after all. Brett Messerschmidt and Tinsley Carmichael definitely aren't feeling the love this Valentine's Day: when Isla Dresden, Isaac's sister, steals Tinsley's thunder-and Brett's boyfriend-the two girls vow to plot their revenge. Callie Vernon is starting to wonder if a girl can have two soulmates. She's in love with both Easy Walsh and Brandon Buchanan, but on February 14th, she can only give one of them her heart. In this final dramatic It Girl novel, the Waverly Owls ponder an age-old question: is all really fair in love and war?

The ninth engrossing novel in the #1 bestselling It Girl series. Popular Gossip Girl character Jenny Humphrey never goes looking for trouble; but trouble always seems to find her. What Waverly Academy mischief will Jenny, Tinsley, and Callie stir up now? It's January, and a new semester at Waverly Academy means one thing: new students. Make that hot new students. A gorgeous brother-sister pair is taking Waverly by storm, and the campus is abuzz with fresh gossip and even fresher crushes. But while all the girls are busy drooling over the new it-guy, they'd better watch their backs-because his sister is going to give them all a run for their money. After all, there can only be one It Girl...

The New York Times bestselling spin-off series to the #1 bestselling Gossip Girl is set in an elite East Coast boarding school and features favorite Gossip Girl character Jenny Humphrey. Having a roommate at elite Waverly Academy means nightly sleepovers and double the designer wardrobe. But Callie Vernon never really liked late-night girl talk or swapping cashmere sweaters with her younger, rosy-cheeked roomie, Jenny Humphrey. So when Jenny stole her longtime boyfriend, Easy Walsh, Callie didn't feel that guilty about turning right around and kissing him behind Jenny's back. Okay, maybe a little guilty, but it certainly didn't stop her from enjoying it. Now, if only Easy would stop being so irritatingly indecisive and dump Jenny already While the two roommates are sharing a boyfriend, the rest of Dumbarton's residents are sharing their feelings at the newly founded Women of Waverly club aka, WOW Everyone is totally bonding, revealing their most personal secrets, and hugging out their past rivalries. But despite the sharing-is-caring vibe, there are some things these girls aren't spilling like who's making special late-night trips to the crater... and with whom. Now it's only a matter of time before all the newfound girl power explodes into a massive girl fight. But this battle goes well beyond the ivy colored brick walls of Dumberton it's about who will be Waverly's next It Girl.

Popular Gossip Girl character Jenny Humphey is making a splash at Waverly Academy, an elite boarding school in New York horse country where glamorous rich kids don't let the rules get in the way of an excellent time. But is Waverly big enough for Jenny, her roommates Callie and Brett, and the infamous Tinsley Carmichael? They're all beautiful, captivating, and a little bit crazy... but there can only be one It Girl.