"Certainly, although it can be rather confusing even when explained. I expect you've already read that the Nexus is a type of crossroads between different planes, or... ah, universes. Because of that, you may find that things here don't work quite the way you'd expect. In your home, no doubt the rules are reliable and places don't move around from day to day. The Nexus has different rules, and sometimes it allows all kinds of strange things to happen." He's trying to keep his explanation simple, remembering what it was like to teach his younger brother at this age.

"For example, streets don't always stay where you left them, and I've seen kinds of magic here that wouldn't work in my own world."