In Kingdom Hearts how do you get back to Big Ben after locking the Neverland Keyhole

This is a good question. With a difficult answer. You see, there is actually a BOSS there after you beat Hollow Bastion the first time. Go to Neverland with Peter Pan in you party. Then, go to a save room. There will be Tinker Bell. Speak to her and...tah-dahhhh!! The boss is quite difficult. Use different types of magic to beat him. You'll see the right time for the right magic by seeing the color of the ball at his feet. You'll figure it out. I think you're a smart guy!:P