After you are free to move around on the 2nd Disc. Fly around Bable Tower untill you see a Light house. Make sure u have Emerala in your party land by the Light house and enter. When your in you can enter certain buildings that have a light. After doing a little exploring. When you reach a parking lot Fei will say "We can get out here" then get out of your gears and look for a man hole its hard to see depending on the brightness of your T.V. Enter man hole and after a few revealing scenes Emerala will be an adult.