[Well, so much for taking the easy route. Billy sighs faintly, grabbing the book and flipping rapidly through the pages, searching for the guide. He could explain it the usual way, but the benefit of having a speedster brother (one of the few benefits, actually) is he can probably read the whole thing before Billy could explain the first paragraph.]

That's the cliffnotes version, yeah. Welcome to Luceti. Different worlds, different universes, different times. We're a multiverse melting pot of crazy.