Ami pondered his comments, her eyes showing that she was deep in thought as she scratched the tip of her nose. The notion of travelling between worlds was fascinating.

"Well, I come from a realm, as you put it, called Earth," Ami replied. "Where I'm from, we would call them 'worlds' instead of 'realms'.

"So do you have to create the portals or do they exist already in each realm?" It would be interesting to know if there was some such 'portal' on Earth, although it was highly unlikely.