[ Sheena's not much of an expert, either, but the things she's seen in her lifetime makes her believe that her theory is more than probable.

And she's going to share part of the story with John.

She gives him that impish look, grateful for the change in topic. ]

You have no idea. Right now--if we do get the chance--it's fairly easy to travel from place to place. But what if I told it wasn't because the world used to be be split in two?