Hey Upper East Siders, Gossip Girl here... and I have the biggest news ever. One of my many sources, Melanie91, sends us this: Spotted at Grand Central, bags in hand: Serena van der Woodsen. Was it only a year ago our It-Girl mysteriously disappeared for quote 'boarding school'? Don't believe me? See for yourselves: Lucky for us, Melanie91 sent proof. Thanks for the photo, Mel! Until next time. You know you love... Gossip Girl. #gossipgirl #serena #serenavanderwoodsen