Is something wicked going on at the Union Square subway station? The Daily News has a photo of a new train, the 9-and-three-quarters, which is the name of the platform Harry Potter and his fellow witches and wizards must find in order to take the train to Hogwarts. Unfortunately, the only way to get there is to charge head-first into the wall in between platforms 9 and 10 at King's Cross Station in London. Countdown until some Four Loko'd teen attempts the same while waiting for the L?